derivation of trigonometric identities (all 3).

Answers

Answer 1

Answer:

Sine, Cosine and Tangent.

Step-by-step explanation:

These are the 3 basic trigonometric identities.


Related Questions

On the grid below, which point is located in the quadrant where the x-coordinate is a negative number and the y-coordinate is a positive number? ASAP!!

Group of answer choices

A

B

C

D
Is it B?

Answers

Answer:

B

Step-by-step explanation:

B is on the upper half of the plane meaning its y-value is positive, however it is on the left side of the plane meaning its x-value is negative.

A would be (+,+)

C would be (-,-)

D would be (+,-)

What is the slope of the following line?
A. 1/3
B. - 1/3
C. 3
D. - 3

Answers

Answer:

A

Step-by-step explanation:

Points of origin are  (-3,0) and (0,1). Now we determine if it is a positive slope, it is as it goes up not down. It goes up 1 unit and over to the right 3 units, making the slope 1/3.

If 1 1/4 kilo of meat is 320 pesos. How much will it need to purchase 5 1/2 kilos of meat?

Answers

Answer:

450 pesos

Step-by-step explanation:

5 kilograms is equal to 400 pesos.

5/12 would be 450 pesos.

i dentify the given condition anf the unknown

Answers

Answer:

Is there a picture i could go by to answer your question or is this is?

Matt's pool table is 3 feet wide and 9 feet long. Matt wants to replace the felt on the pool table. The felt costs $4.00 per square foot. How much would it cost in total to replace the felt on the pool table?

Answers

Answer:

$108

Step-by-step explanation:

3X9= 27square foot. Then you multiply 27 by 4, which equals $108

Please help me translate this Hindi Grammar Notes into English​

Answers

Step-by-step explanation:

kind of sentencesIndia is a great countryLakshmi was bitten by Rahmankind of sentencebasis of their meaningsbasis of their constructionsbasis of their construction sentences are three typessimple sentencefor example the sky is bluecompound sentencefor example the plane which I take in that is blue in colourcomplex sentencefor example the pain which I take in tomorrow that is blue in that colour is blue in type

......

Graph f(x) = -3/4x - 4.

Answers

Answer:

PLS HELP ME 7

Step-by-step explanation:

PLEASE HELP WILL MARK BRAINLIEST NO FAKE ANSWERS
Arrange it in descending order and give the degree of the polynomial.

Answers

Answer:

the degree is 5

they are in decending order

Step-by-step explanation:

Help me plz and thank you

Answers

x+5°=2x-25°
x-2x=-25-5
-x=-30°
x=30°

x+5°= y+28°
30°+5°= y+28°
35°= y+28°
y= 35°-28°
y=7°

Which answer choice shows that the commutative property does NOT hold for matrix multiplication?

Answers

Answer:

D.

Step-by-step explanation:

AB is NOT equal to BA in matrix multiplication.

It is not commutative.

PLS HELP ME
PLS HELP ME

Answers

Answer:

A x=-8 or x=-2

B x=-4 or x=-3

C x=-1 or x=-12

HELPPPPPPPPPPPPPPPPPPPPPPPPPP (I know the one selected isn’t right FYI)

Answers

Answer:

The correct choice is option a. -3x^2 + xy + 3x - y + 2

Step-by-step explanation:

(xy + 3x + 2) - (3x^2 + y)

= xy + 3x + 2 - (3x^2 + y)

= xy + 3x + 2 - 3x^2 - y

= -3x^2 + xy + 3x - y + 2

The correct answer of the given choices i think it would be A

A copy machine makes 32 copies per minute how long does it take to make 152 copies?

Answers

Answer:

It should take about 4.75 min.

Step-by-step explanation:

Hope this helps and could you mark me as the brainliest

1 3x5 x 2 1x3 i don't know what eles to right but what is the answer

Answers

Is it 13x^5 times 21x^3?

Triangle ABC is graphed in the coordinate plane. ​

Answers

Answer:

the answer is d

Step-by-step explanation:

just see the matching coordinates

PLEASE HELP ASAP I WILL GIVE U A LOT OF POINTS AND BRAINLIEST :D

Answers

1.46 x 10^10 if I believe right
#1

Multiply to get the answer:

4×10⁷ * 3.65×10² = (4*3.65)×10⁷⁺² = 14.6×10⁹ = 1.46×10¹⁰ krill#2

Convert to scientific notation and find the ratio of the second number by the first:

26000000000 = 2.6×10¹⁰

Divide:

4.94×10¹³ ÷ 2.6×10¹⁰ = (4.94/2.6)×10¹³⁻¹⁰ = 1.9×10³ = 1900 times

cot 10° . cot 20°. cot 70°. cot 80°. cot 45° = 1​

Answers

Answer:

steps below

Step-by-step explanation:

cot 10° * cot 20° * cot 70° * cot 80° * cot 45°

= (cos 10°/sin 10°)*(cos 20°/sin 20°)*(cos 70°/sin 70°)*(cos 80°/sin 80°)* (1)

= (cos 10°*cos 80°)(cos 20°*cos 70°) / (sin 10°*sin 80°)(sin 20°*sin 70°)

= (1/2*(cos60°+cos90°)*1/2(cos50°+cos90°))/(1/2*(cos60°-cos90°)*1/2(cos50°-cos90°))    ... cos90° = 0     cos60° = 1/2

= (1/8*cos50°) / (1/8*cos50°)

= 1

Mrs. James needs to have her Jeep repaired but does not want to spend more than $375 for the repairs. The mechanic says that the part needed for the repair will cost $100 and the labor will cost an additional $40 per hour. Which inequality represents the greatest number of hours the mechanic can work without exceeding Mrs. James' budget?

Answers

Answer:

375 = 40x + 100

Step-by-step explanation:

A company’s stock was selling at $20 a share. A month later, it was selling at $26 a share. What is the percent gain

Answers

Answer:

The percent gain would be 77952515`0%

A car is traveling at 65 ​mi/hour. What is the​ car's speed in feet per​ second?

Answers

Answer:

65 mph = 95.3 feet per second

Solving Equations with the Variable on Each Side
Justify each step.
a.
b.
1. 4k-3=2k + 5
4k-3-2k= 2k +5 - 2k
2k-3 = 5
2k-3+3=5+3
2k=8
2k_8
2 2
k=4
C.
d.
e.
f.

Answers

Answer:

See below

Step-by-step explanation:

4k - 3 = 2k + 5                      Given

4k - 3 -2k = 2k + 5 - 2k         Addition (added -2k to both sides )

4k - 2k - 3 = 2k - 2k + 5        Commutative  (changed the order of the terms)

2k - 3 =  0 + 5                         Addition/ Identity

 2k - 3 = 5                               Addition

 2k - 3 + 3 = 5 + 3                 Addition (added 3 to both sides)

  2k + 0 = 8                            Addition

  2k =  8                                 Identity

A town is roughly in the shape of a rectangle * 600 m by 270 m. What is the approximate area of the town in hectares?​

Answers

Answer:

Area in Hectares = 16.2 hectares

Step-by-step explanation:

Area of a rectangle: length × width

A = 600 × 270

A = 162,000 meters

162,000 meters ⇒ 16.2 hectares

Only answer please please

Answers

Answer: D

Step-by-step explanation:

Answer:$22.50

Step-by-step explanation:

The three friends already paid the entrance fee. The question asks how much MORE will they pay for 5 MORE rides (8-3 rides). Since tickets are $1.50 each, and we have 3 people:

($1.50/ticket)*(5 tickets/person)*(3 persons) = $22.50 more.

[Note how the units cancel, leaving just $]

50 POINTS!
PLEASE HELP THIS MAKES NO SENSE AT ALL!! IM BEING TIMED

Answers

Answer: the last one i think if i'm wrong then im so sorry

Algebra 2 11th grade

Answers

4. If x = y + 3, then in the second equation you can write

-3 (y + 3) + 3y = 6

Expanding and simplifying gives

-3y - 9 + 3y = 6

-9 = 6

but this is clearly not true, so this system as no solution.

5. Solve the first equation for x :

x + 2y = 4   ===>   x = -2y + 4

Substitute into the other equation:

2 (-2y + 4) - 3y = 1

-4y + 8 - 3y = 1

-7y = -7

y = 1

Solve for x :

x = -2•1 + 4

x = -2 + 4

x = 2

6. Solve the first equation for y :

2x - y = 6   ===>   y = 2x - 6

Substitute into the other equation:

x + 2 (2x - 6) = -2

x + 4x - 12 = -2

5x = 10

x = 2

Solve for y :

y = 2•2 - 6

y = 4 - 6

y = -2

7. Solve either equation for x :

x + 4y = 10   ===>   x = -4y + 10

Substitute into the other equation:

(-4y + 10) - 2y = -8

-6y = -18

y = 3

Solve for x :

x = -4•3 + 10

x = -12 + 10

x = -2

8. Solve the first equation for y :

-2x + y = 1   ===>   y = 2x + 1

Substitute into the other equation:

4x - 2 (2x + 1) = 5

4x - 4x - 2 = 5

-2 = 5

This is false, so there is no solution.

9. Solve the second equation for x :

-x - 4y = -3   ===>   x = -4y + 3

Substitute into the other equation:

2 (-4y + 3) + 8y = 6

-8y + 6 + 8y = 6

0 = 0

This means any value of x and y will satisfy these two equations, so there are infinitely many solutions.

HELP PLZ!!!!!!!!!!! WILL GIVE BRAIN!!!!!!!

Answers

Answer: 1 go to 1 the 2 go to 5 the 3 go to 3 the 4 go to 2 the 5 go to 4

Step-by-step explanation: i hop this helps if not sorry :(

PLEASE help!! I’ll give brainliest!!

The graph shows the number of gallons in a pool being drained and
represents a linear function.

Which statement about this function is correct?

A. The y-intercept is (0, 8500), and the 8500 represents the number
of gallons before draining the pool.

B. The y-intercept is (0, 8500), and the 8500 represents the number of
gallons drained per hour.

C. The y-intercept is (8500, 0) and represents the number of hours it
takes to drain the pool.

D. The y-intercept is (8500,0) and represents the number of gallons
drained per hour.

Answers

Answer:A. The y-intercept is (0, 8500), and the 8500 represents the number

of gallons before draining the pool.

Step-by-step explanation:

The y-intercept is (8500,0) and -540 represents the number of gallons drained per hour. Then the correct option is D.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The graph shows the number of gallons in a pool being drained and represents a linear function.

Let 'x' be the number of hours and 'y' be the volume. And the points are (4, 6340) and (6, 5260). Then the equation of the line is given as,

(y - 6340) = [(6340 - 5260) / (4 - 6)] (x - 4)

y - 6340 = - 540x + 2160

y = - 540x + 8500

The y-intercept is (8500,0) and -540 represents the number of gallons drained per hour. Then the correct option is D.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

what fraction of an hour is 5 minutes in its simplest form

Answers

Answer:

1 / 12

Step-by-step explanation:

one hour = 60 minutes

so

5 / 60

= 1 / 12

Answer:

[tex]\frac{1}{12}[/tex]

Step-by-step explanation:

There are 60 minutes in 1 hour , then 5 minutes as a fraction of an hour is

[tex]\frac{5}{60}[/tex] = [tex]\frac{1}{12}[/tex] ← in simplest form

How much is 9396 divided by 18? Use partial quotients to answer.

Answers

Answer:

9396/18 is 522

Cho tam giác ABC vuông tại A có cạnh BC=10 AC=8 tính cạnh AB

Answers

Answer:

AB = 6

Step-by-step explanation:

Áp dụng định lý Pytago, ta có:

AB^2 + AC^2 = BC^2

=> AB = [tex]\sqrt{BC^{2}-AC^2 }[/tex]

          [tex]=\sqrt{10^2 - 8^2} \\= \sqrt{100 - 64} \\= \sqrt{36} \\= 6[/tex]

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