Prove cosxtanx = sinx

Answers

Answer 1
cos(x)tan(x)

Transform the expression by using the formula for tan theta:
tan(t)= sin(t)/cos(t)

cos(x)= sin(x)/cos(x)

Cancel out the cos(x) since it’s on both sides

Final answer : sin(x)

cos(x)tan(x) is equal to sin(x)

Related Questions

Round 2.77247497243 to the nearest millionth.

Answers

Answer:   2.7725

Step-by-step explanation:

Answer:

2.7725

Step-by-step explanation:

9. Find the value of x.

(look at the picture)

Answers

Answer:

use the fact that triangles only have room for 180 degrees inside, so all the angles must add up to 180, no more, no less. You can also jsut insert the options for x values until you find the right one(shouldnt take too long).

Step-by-step explanation:

Mindy looks outside her window and sees limp tomato plants in the garden. She quickly waters the plants, and by the end of the day, the plants are upright with firm stems. How did watering the tomato plants straighten the stems?

Answers

Answer:

Do you have options.

If not I am guessing because the roots sucked the water up distributing it throughout the entire plant making it hydrated and strong to stand.

Step-by-step explanation:

Find the Sum of this equation

Answers

Answer:

its the yellow one

Step-by-step explanation:

Answer:

3y3 + 7y2 - 4y +3  yellow

Step-by-step explanation:

Write the equation of the line in fully simplified slope intercept form”

Answers

Answer:

I think y=-5 , x = 3

Answer:

y = 5/3x - 5

Step-by-step explanation:

Slope = rise / run

The distance between two points is 5 up and 3 right. Hence, 5/3x is the slope.

-5 is where the line crosses the y axis, making it the y-intercept.

Find the slope

(3, 8) and (2, 10)

Answers

Answer:

m = -2

Step-by-step explanation:

Let (x1 , y1 ) = ( 3 , 8) and (x2 , y2 ) = ( 2 , 10)

Now

slope (m)

= y2 - 1 / x2 - x1

= 10 - 8 / 2-3

= - 2

hope it helps :)

Answer:

m = -2

Step-by-step explanation:

Which statement describes a unit rate?
A.Alex eats 3 apples.
B.Kyle runs 3 miles over 2 days.
C. Zack reads 3 pages of his book per minute. D.Michael adds 3 cups of sugar for every 2 cups of flour​

Answers

Answer:

c. 3 pages per minute

.......

There are twelve doughnuts in a dozen. How many doughnuts are there in ten dozen?

Answers

I’m think it’s 120 since
One dozen =12
You would multiply it by 10
10x12=120

Math problem, need help

Answers

Answer:

(7-3i)

Step-by-step explanation:

You add them together so 3+4 and 2i + - 5i but since the 5 is negative it would be negaitive

Identify and describe the error in the incorrect counselor's work.

Answers

Answer:

?????????

Step-by-step explanation:

?????????

At janices age she is not only 5 times older than ross, but she is 28 years older than ross. How old is janice?

Answers

Answer:

35 years old

Step-by-step explanation:

Let Janice's age = j.

Let Ross's age = r.

j = 5r

j = r + 28

Set the equations equal to each other.

5r = r + 28

4r = 28

r = 7

j = 5r

j = 5(7)

j = 35

Answer: 35 years old

Multiply −47(−35)(−73). Simplify your answer.

Answers

Answer:

-47(-35)(-73)

1645×-73

-120 085

ans: -120 085

Answer:

-47(-35)(-73)

1645×-73

-120 085

ans: -120 085

Step-by-step explanation:

Alex needs to fill up his fish tank with water. If the tank is 8 wide,9 long and 12 tall, how much water is required to fill the tank ?

Answers

Answer:

864 gallons, or whatever measurement, of water are required.

Step-by-step explanation:

You just have to find the volume of the fish tank, which is length x width x height. So, 8 x 9 x 12 which equals 864.

864 because 8x9=72 and 72x12= 864

convert the following to fraction :
i) 7.028
ii) 3.432
plz solve ​

Answers

Answer:

467y6y

66 43

T68999

56 9

Step-by-step explanation:

Gftghhcryihfghobfascho

Melanie's fruit punch recipe calls for 6 cups of apple juice for every 3 cups of carrot juice.
How many cups of carrot juice are used for each cup of apple juice?

Answers

Answer:

1/2 cup of carrot juice for each cup of apple juice.

Step-by-step explanation:

The ratio of carrot juice to apple juice is 3:6

Also written as 1:2

1/2 cup of carrot juice per 1 cup of apple juice

What value of x makes this equation true? 2/3x - 5 = 1/6x + 3 ​

Answers

Answer:

D(16)

Step-by-step explanation:

2/3x-5=1/6x+3

Multiply on both sides by 6

4x-30=x+18

Change its sign and move the variable to the left hand side

4x-x-30=18

4x-30=x+18

4x-x=18+30

3x=18+30

Add the numbers

3x=48

Divide both sides

x=16

help due soon and really need the grade

Answers

I would go out on a limb and say it’s A

A swimming pool is shaped like a cylinder with a radius of 15 feet and a height of 6 feet

Answers

Answer:

4239 cubic feet

Step-by-step explanation:

V=[tex]\pi[/tex][tex]r^{2} *h[/tex]

V=3.14*225*6

V=3.14*1350

V=4239

Please help!! This is urgent!!

Answers

-8/5 is the correct answer
8\5 is the answer hope it helps

A system of inequalities can have no solution?
a)true
b)false

Answers

Answer:

True

Step-by-step explanation:


David is saving up money to buy a new car. He had $1,350 saved up 4 months ago, and now has $2,150. He adds the same amount of money each month

Answers

Answer:

David is saving up money to buy a new car. He had $1,350 saved up 4 months ago, and now has $2,150. He adds the same amount of money each month

Step-by-step explanation:

I'm not clear on your actual question, but I'm guessing you want to know how much money he has saved each of the last four months.

2150 - 1350 = $800 saved over the past four months

$800 / 4 months = $200 saved per month

3(x+5) - 3 = 2(3x + 1) - 3
how many solutions does this equation have?

Answers

Answer:

Step-by-step explanation:

1 solution: x=13/3

An anchor is released from a boat and begins sinking. Its
velocity after it hits the water can be expressed as –10 feet
per second. Where is the anchor with respect to the surface
9 seconds after it hits the water?

Answers

you multiply -10 and nine and you get -90 hope this helps.

Step-by-step explanation:

help!!!i need it quick

Answers

Answer:

A linear function is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

An exponential equation is written as:

y = A*(r)^x

Where A is the initial quantity and r is the rate of growth.

If a and A are both positives, the similar characteristic of both types of functions is that as x increases, then the value of y will also increase. Then both functions are increasing functions.

They are different in how they increase, while a linear function increases at a constant rate, an exponential function increases slow at the beginning and really fast as x increases, as you can see in the image below where we compare the two types of functions, the green one is the linear function, and the blue one is the exponential function.

STEP BY STEP PLEASE
If the perimeter of square 3 is 36 units and the perimeter of square 2 is 48 units, what is the area of square 1?

Answers

We can find the side length of square 3 by dividing by 4, which is 9.

Then, we find the side length of square 2 by dividing it by 4, which is 12.

To find the AREA of square 1, we do a^2+b^2=c^2. This is basically adding up area of square 1 and square 2 to get square 3.

a^2+b^2=c^2
9^2+12^2=c^2
81+144=225

So the area is 225 units.

Answer:

225

Step-by-step explanation:

length of side in square 3 = 36/4

=9

length of side in square 2 = 48/ 4

= 12

using pythagorus theorem you can find side of square 1

take the triangle between 3 and 2

9^2 + 12^2 = length of side 1^2

81 + 144 = l^2

225 = l^2

l = 15

therefore length of side 1 is 15

area of square 1 = 15^15

area = 225 square units

hope this helped

ask if you didn't understand something or you think i am wrong:)

En una prensa hidráulica, el pistón pequeño tiene un diámetro de 12 cm y el pistón grande tiene un diámetro de 3 m ¿Qué fuerza se requiere aplicar en el pistón pequeño para levantar un peso de 7848 N con el pistón grande?

Answers

Answer:

i dont know what is that language

Can someone tell me the equation of this graph
1. f(x)=1/4x + 4
2. y=1/2x + 4
3. y=2x + 4
4. f(x)= - 2/3x + 4

Answers

Answer:

3. y=2x + 4

Step-by-step explanation:

We know that b is 4 because of the point (0,4)

Now count the slope by using rise over run

We go up 2 and over 1 so the slope is 2

Please help with 2 and 3!! I´ll give brainly!!

Answers

Answer:

2 and 16

Step-by-step explanation:

0.2(10-5c)=5c-16


answer correctly or reported

Answers

Answer:

c=3

Step-by-step explanation:

0.2(10-5c)=5c-16

2 - 1c = 5c - 16

2 = 6c - 16

18 = 6c

3 = c

2. Nike and Vans shoe stores are having a sale! (If needed, round to the 100ths place. i.e. like money)
Original Price: $42.50
SALE- 25% OFF
Original Price: $55.75
SALE - 40% OFF
a) What is the discount dollar amount for each shoe?
Nike :
Vans
b) What is the final sale price of each shoe?
Nike :
Vans :

Answers

Answer:

a)

Nikes: $ 10.63

Vans: $ 22.3

b)

Nikes: $ 31.88

Vans: $ 33.45

Step-by-step explanation:

a)

Nike: 42.50 x .25  =  10.625

Vans: 55.75 x .4  = 22.3

b)

Nikes: 42.50 - 10.625 = 31.875

Vans: 55.75 - 22.3 = 33.45

Answer:

Step-by-step explanation:

a)

Nikes: $ 10.63

Vans: $ 22.3

b)

Nikes: $ 31.88

Vans: $ 33.45

Step-by-step explanation:

a)

Nike: 42.50 x .25  =  10.625

Vans: 55.75 x .4  = 22.3

b)

Nikes: 42.50 - 10.625 = 31.875

Vans: 55.75 - 22.3 = 33.45

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