2 years ago

Find the value of ( 1+cosA) (1-cosA)

Mathematics

1 answer:

Mandarinka [93]2 years ago

3 0

Answer:

sin^2 A

Step-by-step explanation:

first expand the trigonometry

1(1-cosA)+cosA(1-cosA)

=1-cosA+cosA-cos^2 A

= 1-cos^2 A

from trigonometric identity sin^2 A + cos^2 A= 1

sin^2 A= 1- cos^2 A

=sin^2 A

You might be interested in

Today, Nate has 100 bananas. He will eat 2 of them every day.

Vikki [24]

Answer:

Yes

Step-by-step explanation:

100 bananas / 2 each day = 50 days

8 0

3 years ago

Read 2 more answers

What is the slope of the line created by this equation? Found your answer out to two decimal places.10x+2y=3

seraphim [82]

The line equation in slope-intercept form is given by

$y=mx+b$

where b is the y-intercept and m is the slope.

Then, we need to convert the given equation into the slope-intercept form. Then, by subtracting 10x to both sides, we have

$2y=-10x+3$

and by dividing both sides by 2, we get

$y=-5x+\frac{3}{2}$

By comparing this result with the first equation, we can see that the slope is m= -5. So, the answer is: -5

5 0

11 months ago

Which is more likely to happen?

horsena [70]

Number one is more likely to happen.
how likely is it? equally likely as not likely

8 0

2 years ago

Questions is <br><br>1)what two bodies of water do the coastal lowlands border

Katena32 [7]

Im pretty sure that the answe would be northern plains

3 0

3 years ago

The city of Smyrna has a flea population that has been doubling every year. If there are about 100,200 fleas this year, how many

Bad White [126]

The equation for this is 100,200(2)^n where n is the number of years

so in 3 years the population will be 100,200(2)^3 = 801,600

7 0

3 years ago

Read 2 more answers