In a right triangle, cos (62-x° = sin (48 - 4.1x)°. Determine the value of x to the nearest tenth.
A 90
B 4
C -4.4
D 4.4

The length of the base is 5 feet

A quadratic equation is a second-degree polynomial equation that can be written in the form "ax² + bx + c = 0", where "x" is the variable, and "a", "b", and "c" are constants. The coefficient "a" cannot be zero, as this would result in a linear equation.

The area of a triangle is gotten from;

A = 1/2bh

2A = bh

A = 35 square feet

70= b (2b +4)

70 = 2b^2 + 4b

2b^2 + 4b - 70 = 0

b = 5 or -7

Since length can not be negative;

b = 5 feet

length = 2(5) + 4 = 14 feet

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The correct answer is option B, 3360x6y4.

The term containing x6 in the expansion of (x+2y)10 will arise from selecting the x term exactly 6 times out of 10 terms. We can select the x term in different ways by using the binomial theorem.

The binomial theorem states that for any positive integers n and k, the coefficient of x^(n-k) in the expansion of (x+y)^n is given by the binomial coefficient (n choose k), which is written as nCk and can be calculated using the formula:

nCk = n! / (k! * (n-k)!)

where ! denotes the factorial function.

In our case, we need to find the coefficient of x^6 in the expansion of (x+2y)^10, which is given by:

10C6 * x^6 * (2y)^4

= 210 * x^6 * 16y^4

= 3360x^6y^4

Therefore, the correct answer is option B, 3360x6y4.

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When a regression model is created to fit a sample set of data, its prediction ability is reduced overfitting. Thus, option C is correct.

Overfitting is a phenomenon in machine learning where a regression model is trained too well on the sample data.

to the point where it starts to memorize the data instead of learning the underlying patterns or trends. As a result, the overfitted model may not generalize well to unseen data and may exhibit poor predictive power when used for making predictions on new data.

The term "compromising predictive power" in the question suggests that the model is not able to accurately predict outcomes on new, unseen data due to overfitting.

Essentially, the model becomes too specialized to the sample data it was trained on and loses its ability to generalize to new data points.

Flooding is not a term related to machine learning or regression modeling. Binary choice refers to a decision between two options and is not related to overfitting.

Therefore, When a regression model is created to fit a sample set of data, its prediction ability is reduced overfitting

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The alternating series error bound is (C) 1/26.7!, since 26.7! is the smallest factorial greater than [tex]120*M_5.[/tex]

The alternating series error bound for an alternating series of the form [tex]\sum (-1)^n b_n[/tex]is given by [tex]|R_n| < = b_{(n+1)}[/tex], where [tex]R_n[/tex] is the remainder term and [tex]b_n[/tex] is the absolute value of the (n+1)th term in the series.

In this case, the fourth degree Taylor polynomial for f about x = 0 is given by:

[tex]P_4(x) = f(0) + f'(0)x + (f''(0)/2)x^2 + (f'''(0)/6)x^3 + (f''''(0)/24)x^4[/tex]

The alternating series error bound for the approximation of f(x) by [tex]P_4(x)[/tex]is therefore:

[tex]|R_4(x)| < = |f(x) - P_4(x)| < = (M/5!) |x - 0|^5,[/tex]

where M is an upper bound for [tex]|f^{(5)}(c)[/tex]| on the interval [0,x] for some c between 0 and x.

Since the Taylor series for f about x=0 converges to f for all real x, we know that M is finite. Therefore, we can find an upper bound for [tex]|f^{(5)}(c)|[/tex]on [0,-1] using the Mean Value Theorem.

Let g(x) = f''''(x). Then, by the Mean Value Theorem, there exists some c between 0 and -1 such that:

g(c) = (g(0) - g(-1))/(-1 - 0) = g(0) - g(-1)

Since the fourth derivative of f is continuous, g is continuous on the interval [0,-1]. Therefore, by the Extreme Value Theorem, g attains its maximum and minimum values on [0,-1].

Let[tex]M_5 = max{|g(x)| : x in [0,-1]}[/tex]. Then we have:

[tex]|R_4(x)| < = M_5/5! |x|^5 = M_5/120[/tex]

Therefore, the alternating series error bound is (C) 1/26.7!, since 26.7! is the smallest factorial greater than [tex]120*M_5.[/tex]

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The double line graph for the amount in the River Bank and Town Bank indicates;

13 a. $10,000

13 b. Two year

c. $4,000 per year

A graph of a function shows the relationship that exists between the input and output values of the function.

The graph with the lines that have markings is the graph of the River Bank

The graph with the lines without markings is the graph of the Town Bank

13 a. In the year 2,000, the money in River Bank = $6,000

The money in Town Bank = $4,000

The combined amount in both banks in the year 2,000 is therefore;

Amount  = $6,000 + $4,000 = $10,000

13 b. Town Bank had more money than Rivers Bank in the years; 1998, 2002

Therefore;

Towns Bank had more money that Rivers Bank in 2 years

c. The amount River Bank had between 1998 to 2004 are;

$5,000 + $3,000 + $6,000 + $4,000 + $1,000 + $7,000 + $2,000 = $28,000

The number of years between 1998 and 2004 = 7 years

The mean number of dollars per year River Bank had = $28,000/7 = $4,000 per year

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Answer: x * y = 2x + 5y. Formula used: x * y = 2x + 5y. Calculation: When x = 3, and y = 5. ⇒ 2x + 5y = (2 × 3) + (5 × 5) = 6 + 25 = 31

Step-by-step explanation:

The rational number that helps complete the circuit is given as follows:

0.222...

For this problem, we have two options to complete the circuit, as follows:

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Cos L as a fraction in simplest terms is equal to √803 / 121

The mathematical subject of trigonometry is the study of the connections between the angles and sides of triangles.

It entails investigating trigonometric functions like sine, cosine, and tangent, which relate a triangle's angles to its sides' lengths.

To find cos L, we need to use the ratio of the adjacent side to the hypotenuse in the right triangle LMN.

cos L = LM / LN

We know that LM = √73 and LN is the hypotenuse of the triangle, which can be found using the Pythagorean theorem:

LN = √(LM² + MN²)

= √(73 + 48)

= √121

= 11

Therefore, cos L = LM / LN = √73 / 11.

To simplify this fraction, we can rationalize the denominator by multiplying the numerator and denominator by 11:

cos L = √73 / 11 × 11 / 11

= √(73 × 11) / 121

= √803 / 121

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The velocity and position of a body moving through a resisting medium with resistance proportional to its velocity are given by v(t) = v₀e^(-kt) and x(t) = x₀ + (v₀/k)(1-e^(-kt)), respectively.

We are given that the resistance of the medium is proportional to the velocity of the body, so we can write

F = -kv

where F is the force acting on the body, k is the proportionality constant, and v is the velocity of the body. Since F = ma (Newton's second law), we have

ma = -kv

Dividing both sides by m and rearranging, we get

dv/dt = -k/m × v

We can now solve this differential equation by separation of variables

dv/v = -k/m × dt

Integrating both sides, we obtain

ln|v| = -k/m × t + C

where C is the constant of integration. Exponentiating both sides, we get

|v| = e^(-k/m × t + C) = e^C × e^(-k/m × t)

Note that since v is always positive (it's the speed of the body), we can drop the absolute value signs. Also, since e^C is just a constant, we can write

v = v₀ × e^(-k/m × t)

where v₀ = e^C is the velocity of the body at time t=0.

Next, we can find the position of the body by integrating the velocity

dx/dt = v

Integrating both sides, we obtain

x(t) = x₀ + ∫ v(t) dt

where x₀ is the position of the body at time t=0. Substituting v(t) = v₀ × e^(-k/m × t), we get:

x(t) = x₀ + ∫ v₀ × e^(-k/m × t) dt

Integrating, we obtain:

x(t) = x₀ - (m/k) × v₀ × e^(-k/m × t) + A

where A is the constant of integration. We can determine A by using the initial condition x(0) = x₀, which gives

x(0) = x₀ - (m/k) × v₀ × e^(0) + A

A = x₀ + (m/k) × v₀

Substituting this into the equation for x(t), we finally get

x(t) = x₀ + (v₀/k) × (1 - e^(-k/m × t))

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The given question is incomplete, the complete question is:

Suppose that a body moves through a resisting medium withresistance proportional to its velocity v , so that dv/dt =-kv. Show that its velocity and position at time t are given by v(t)= v₀e^(-kt) and x(t) = x₀ +(v₀ / k)(1-e^(-kt)).

The area of the segment is 1.68 squared.

The area of the shaded segment is the subtraction of the area of the triangle from the area of the sector OMN.

Therefore,

area of the segment  = ∅ / 360 πr² - 1 / 2r²sin(∅)

area of the segment  = 30 / 360 π(12)² - 1 / 2 (12)² sin 30°

area of the segment  = 1 / 12 π(144) - 1 / 2(144)0.5

area of the segment  = 12π  - 36

area of the segment  = 12(3.14) - 36

area of the segment  = 37.68 - 36

area of the segment  = 1.68 inches squared.

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The ratios that are equivalent to the ratios in the table are 1:3 and 10:30. (optio a or d).

The given table shows two columns, A and B, with four entries each. Each entry in column A is paired with a corresponding entry in column B. To determine which ratios in the form A:B are equivalent to the ratios in the table, we need to find the common factor between each pair of entries.

Similarly, for the second row with A=3 and B=9, we can simplify the ratio to 1:3 by dividing both A and B by their greatest common factor, which is 3.

For the third row with A=4 and B=12, we can simplify the ratio to 1:3 by dividing both A and B by their greatest common factor, which is 4/2=2.

For the fourth row with A=5 and B=15, we can simplify the ratio to 1:3 by dividing both A and B by their greatest common factor, which is 5/5=1.

Therefore, the ratios in the form A:B that are equivalent to the ratios in the table are 1:3 for all four rows.

The ratio 10:30 can be simplified by dividing both terms by their greatest common factor of 10, which gives 1:3. This ratio is equivalent to the ratios in the table.

Hence the correct option is (a) or (d).

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The derivative dy/dx is (6y - eˣ - yeˣ)/y².

To find dy/dx for the given equation ex/y = 6x - y, you can use implicit differentiation without taking the log.

Given the equation [tex]e^\frac{x}{y}[/tex] = 6x - y, you do not need to take the log of both sides. Instead, start by applying implicit differentiation to both sides with respect to x:

1. Differentiate ex with respect to x: d(eˣ)/dx = ex
2. Differentiate y with respect to x: d(y)/dx = dy/dx
3. Differentiate 6x with respect to x: d(6x)/dx = 6
4. Apply the quotient rule to d([tex]e^\frac{x}{y}[/tex])/dx: d(ex/y)/dx = (y * d(eˣ)/dx - eˣ * d(y)/dx) / y² = (y * eˣ - eˣ * dy/dx) / y²
5. Set the derivatives equal: (y * eˣ - eˣ * dy/dx) / y² = 6 - dy/dx

Now, solve for dy/dx:

6. Multiply both sides by y²: y * eˣ - eˣ * dy/dx = 6y² - y² * dy/dx
7. Rearrange terms: dy/dx * (y² + eˣ) = 6y² - y * eˣ
8. Solve for dy/dx: dy/dx = (6y² - y *eˣ) / (y² + eˣ) = (6y - ex - yeˣ) / y²

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The probabilities of

a) P(3) = 0.07

b) P(<1) = 0.67

c) P(≤2) = 0.93

d) P(>2) = 0.07

Probability is a measure of the likelihood of an event occurring. It is a numerical value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event.

a) The probability of getting a value of 3 is simply the value of P(3),

P(3) = 0.07

b) To find the probability of getting a value less than 1, we add the probabilities of getting 0 and 1,

P( < 1) = P(0) + P(1) = 0.02 + 0.65 = 0.67

c) To find the probability of getting a value less than or equal to 2, we add the probabilities of getting 0, 1, and 2,

P( ≤ 2) = P(0) + P(1) + P(2) = 0.02 + 0.65 + 0.26 = 0.93

d) To find the probability of getting a value greater than 2, we simply look at the probability of getting a value of 3, which is 0.07.

P( > 2) = P(3) = 0.07

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The given question is incomplete, the complete question is:

X 0 1 2 3

P(x) .02 .65 .26 .07

Find the probabilities

a) P(3) =

b) P( < 1) =

c) P( ≤ 2) =

d) P (>2) =

The time of the rth arrival in a Poisson process follows a gamma distribution with parameters r and λ, where λ is the rate parameter.

The density function for the time of the rth arrival is: f(w) = λ^r * w^(r-1) * e^(-λw) / (r-1) where w is the time of the rth arrival. This density function gives the probability density of the time of the rth arrival occurring at a specific time w, given that there have been n arrivals up to time t.

The density function is derived from the fact that the time between successive arrivals in a Poisson process follows an exponential distribution with rate parameter λ, and the time of the rth arrival is the sum of r independent exponential random variables.

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The electric field strength decreases as the distance from the plane increases.

The electric field strength near an infinite plane of charge is given by:

E = σ/2ε0

where E is the electric field strength, σ is the surface charge density of the plane, and ε0 is the electric constant.

The electric field strength at a point near the plane depends on the distance from the plane and the orientation of the point relative to the plane.

Assuming that the surface charge density is constant, we can rank the electric field strength from largest to smallest based on the distance from the plane:

Point closest to the plane

Point at a distance of 2 times the distance from point 1

Point at a distance of 3 times the distance from point 1

Point at a distance of 4 times the distance from point 1

Point at a distance of 5 times the distance from point 1

This is because the electric field strength decreases as the distance from the plane increases.

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For each of the third-order linear equations, the basis for the solution space can be found by solving the characteristic equation and then finding the corresponding linearly independent solutions. The solutions for each equation are:

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The answer is True we use observed value not critical value

The answer is True. When computing the effect size, you use the observed value of t in the formula rather than the critical value. The critical value is used to determine statistical significance, while the effect size is calculated using the observed value to measure the strength or magnitude of the relationship between variables.

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Answer: D

Explanation: Since 21 out of 24 bean seeds sprouted in the first class, the probability of a bean seed sprouting is 21/24, or 0.875. This information does not provide any information about the seeds in the other five classes, other than that they were all planted using the same method. Therefore, we cannot make a definitive statement about how many seeds will or will not sprout in the other classes. Option A is supported by the given information, since 87.5% of the seeds in the first class sprouted. Option B is not necessarily supported by the given information, as it depends on how many seeds were used in total. Option C is not directly supported by the given information, but is a possible conclusion based on the probability of a seed sprouting. Option D is contradicted by the given information, since at most 3 out of 24 seeds did not sprout in the first class.

The coordinates of point P are (-3, -1).

The coordinates of point P that divides the line segment AB in the ratio 1:4 is calculated as follows;

let the ratio = a : b = 1:4

P = ( (bx₂ + ax₁)/(b + a), (by₂ +  ay₁)/( b + a) )

Where;

The coordinate of point P is calculated as follows;

P = ( (4(-2) + 1 (-7))/(4 + 1),  (4(0) + 1(-5) )/(4 + 1))

P = (-8 - 7)/(5), (0 - 5)/(5)

P = (-15/5), (-5/5)

P = (-3, - 1)

Thus, the coordinate of point P is determined by applying  ratio formula on a line segment.

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The width and height of the rectangle is w = 23 cm and h = 18 cm

Given data ,

Let the prism be represented by the figure A

Now , the width of the prism = 23 cm

The height of the prism = 12 cm

Now , the width of the rectangle = width of prism

So , w = 23 cm

And , the height of the rectangle is = breadth of the prism = 18 cm

So , h = 18 cm

Hence , the rectangle is solved

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The solution to the differential equation is: [tex]y(x) = c1 (x-9)^4 + c2 (x-9)[/tex]where c1 and c2 are constants of integration.

To solve this differential equation using the method of "reducing to a polynomial equation", we can make the substitution:

x - 9 = t,

so that x = t + 9 and y(x) = y(t+9).

We can then rewrite the differential equation in terms of t as follows:

[tex][(t+9)^2] y'' - 9(t+9) y' + 16y = 0[/tex]

We can now make the substitution [tex]y = (t+9)^m[/tex], where m is some constant to be determined.

Taking the first and second derivatives of y with respect to t, we get:

[tex]y'=m(t+9)^{(m-1)}[/tex]

[tex]y'' = m(m-1) (t+9)^{(m-2)}[/tex]

Substituting these expressions into the differential equation, we get:

[tex][(t+9)^2] m(m-1)(t+9)^{m-2} - 9(t+9) m(t+9)^{m-1} + 16(t+9)^m = 0[/tex]

Simplifying, we get:

m(m-1) - 9m + 16 = 0

Solving this quadratic equation for m, we get:

m = 4 or m = 1

Therefore, the general solution to the differential equation is given by:

[tex]y(t) = c1 (t+9)^4 + c2 (t+9)[/tex]

where c1 and c2 are constants of integration.

Substituting back to x, we have:

[tex]y(x) = c1 (x-9)^4 + c2 (x-9)[/tex]

where c1 and c2 are constants of integration.

Therefore, the solution to the differential equation is:

[tex]y(x) = c1 (x-9)^4 + c2 (x-9)[/tex]

where c1 and c2 are constants of integration.

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When x = -3 and dx = -0.4, dy = -0.3386. This means that when x decreases by 0.4, y decreases by approximately 0.3386 units.

To find dy, we need to take the derivative of the function y=6cos(x) with respect to x. The derivative of cos(x) is -sin(x), so the derivative of 6cos(x) is -6sin(x). Therefore, dy/dx = -6sin(x).

Now, we can evaluate dy when x = -3 and dx = -0.4. Plugging in x = -3 into the derivative we just found, we get dy/dx = -6sin(-3). Using the unit circle, we know that sin(-3) is approximately equal to -0.1411. Therefore, dy/dx = -6(-0.1411) = 0.8466.

To find dy, we can use the formula dy = dy/dx * dx. Plugging in the values we have, we get dy = 0.8466 * (-0.4) = -0.3386.

Therefore, when x = -3 and dx = -0.4, dy = -0.3386. This means that when x decreases by 0.4, y decreases by approximately 0.3386 units. This information can be useful in understanding the behavior of the function y=6cos(x) in the neighborhood of x = -3.

Overall, finding the derivative of a function allows us to understand how the function changes as its input (in this case, x) changes. By evaluating the derivative at a specific point, we can find the rate of change (dy/dx) and use it to find the change in output (dy) for a given change in input (dx).

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The answer to the given statement is as follows:

It is inappropriate to apply the Empirical Rule to a population that is right-skewed

b. False.

The given statement is false because the rule of thumb, also known as the 68-95-99.7 rule, is a statistical rule that applies to the normal distribution. This rule was lost in our sample, with about 68% of the data falling within one standard deviation of the mean for a normal distribution, and about 95% of the data falling within two standard deviations from the mean, and about 99.7% of the data being lost in our sample. The deviation from the mean is the difference between the mean of the standard deviation.

Although the rule of thumb is most true for symmetric normal distributions, it can also be used for distributions, including right-skewed distributions.

However, as the distribution becomes more skewed, the rule of thumb may not be correct. In a right-skewed distribution, the mean is greater than the median and the tails of the distribution are to the right. In such a distribution, a rule of thumb might estimate the proportion of data that is one or two standard deviations from the mean.

Despite this limitation, the rule of thumb can be a useful tool for understanding the spread of data in right-skewed distributions. However, it is important to know that this law can predict the percentage of data in a given situation.

In such cases, other methods such as quartiles or percentages are more effective for analyzing the distribution of the data.

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The recursion, and subsequent terms are defined in terms of previous terms in the sequence

A) The recursive definition for the sequence An is:

An = (4n-2)An-1 + 4Ao, with A1 = 4Ao.

B) The recursive definition for the sequence An is:

An = n(n+1)An-1 + Ao, with A1 = Ao.

C) The recursive definition for the sequence An is:

An = 1 + (-1)nAn-2tAo, with A1 = Ao and A2 = 1 - Ao.

D) The recursive definition for the sequence An is:

An = n^2An-1 + Ao, with A1 = Ao.

These recursive definitions define each term of the sequence An as a function of one or more previous terms in the sequence, starting with a basis case. The basis case provides the starting point for the recursion, and subsequent terms are defined in terms of previous terms in the sequence.

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The given statement "In order for a matrix B to be the inverse of A, the equations AB = I and BA = I must both be true." is true because of the definition of the inverse matrix.

An inverse matrix is obtained by dividing the adjugate of the given matrix by the determinant of the given matrix.

An inverse matrix is also known as a reciprocal matrix.

In order for a matrix B to be the inverse of A, both equations AB = I (Identity matrix) and BA = I must be true.

This is because the inverse of a matrix A, denoted as A⁻¹ (in this case, matrix B), should satisfy these conditions for it to be a true inverse.

When a matrix is multiplied by its inverse, the result is the identity matrix.

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The general solution is: y(x) = c1e^x + c2e^-x + c3cos x + c4sin x.

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The solution to the initial value problem. y' (t) - 2y = 6, y(2) = 2 is  y(t) = -3 + (5/e^4)e^(2t)..

To solve the initial value problem y'(t) - 2y = 6 with y(2) = 2,

we will use an integrating factor and the given initial condition. Here's the step-by-step solution:

1. Identify the integrating factor: The integrating factor is e^(-2t).

2. Multiply the equation by the integrating factor: e^(-2t)y'(t) - 2e^(-2t)y = 6e^(-2t).

3. Observe that the left side of the equation is the derivative of the product y(t)e^(-2t): (y(t)e^(-2t))' = 6e^(-2t).

4. Integrate both sides with respect to t: ∫(y(t)e^(-2t))' dt = ∫6e^(-2t) dt.

5. Integrate: y(t)e^(-2t) = -3e^(-2t) + C.

6. Solve for y(t): y(t) = -3 + Ce^(2t).

7. Apply the initial condition y(2) = 2: 2 = -3 + Ce^(4).

8. Solve for C: C = (5/e^4).

9. Substituting C back into the solution for y(t): y(t) = -3 + (5/e^4)e^(2t).
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The given sequence [tex]a_{n}[/tex]  does not converge, but instead diverges to infinity.

In mathematics and analysis, the terms "convergence" and "divergence" are used to describe the behavior of a sequence, which is an ordered list of numbers that are generated according to a certain pattern.

[tex]\begin{}|a_n| &= \left| \frac{(-1)^{n+1} \cdot n}{n \cdot \sqrt{n}} \right| \\&= \frac{n}{\sqrt{n}} \\\lim_{{n \to \infty}} |a_n| &= \lim_{{n \to \infty}} \frac{n}{\sqrt{n}} \\&= \lim_{{n \to \infty}} \frac{\sqrt{n} \cdot \sqrt{n}}{\sqrt{n}} \\&= \lim_{{n \to \infty}} \sqrt{n}\end{align*}[/tex]

As n approaches infinity, √n also approaches infinity. Therefore, the limit of ∣[tex]a_{n}[/tex]| as n approaches infinity is also infinity.

Since, the absolute value of the sequence |[tex]a_{n}[/tex]| approaches infinity as

n approaches infinity, the sequence [tex]a_{n}[/tex] does not converge, but instead diverges to infinity.

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Correct Question:find whether the sequence converges or diverges [tex]\begin{}|a_n| &= \left| \frac{(-1)^{n+1} \cdot n}{n \cdot \sqrt{n}} \right| \\&[/tex] ?

The given sequence [tex]a_{n}[/tex]  does not converge, but instead diverges to infinity.

In mathematics and analysis, the terms "convergence" and "divergence" are used to describe the behavior of a sequence, which is an ordered list of numbers that are generated according to a certain pattern.

[tex]\begin{}|a_n| &= \left| \frac{(-1)^{n+1} \cdot n}{n \cdot \sqrt{n}} \right| \\&= \frac{n}{\sqrt{n}} \\\lim_{{n \to \infty}} |a_n| &= \lim_{{n \to \infty}} \frac{n}{\sqrt{n}} \\&= \lim_{{n \to \infty}} \frac{\sqrt{n} \cdot \sqrt{n}}{\sqrt{n}} \\&= \lim_{{n \to \infty}} \sqrt{n}\end{align*}[/tex]

As n approaches infinity, √n also approaches infinity. Therefore, the limit of ∣[tex]a_{n}[/tex]| as n approaches infinity is also infinity.

Since, the absolute value of the sequence |[tex]a_{n}[/tex]| approaches infinity as

n approaches infinity, the sequence [tex]a_{n}[/tex] does not converge, but instead diverges to infinity.

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Correct Question:find whether the sequence converges or diverges [tex]\begin{}|a_n| &= \left| \frac{(-1)^{n+1} \cdot n}{n \cdot \sqrt{n}} \right| \\&[/tex] ?