Question

Simplify square root parenthesis 1 minus cosine theta parenthesis times parenthesis 1 plus cosine theta parenthesis.

sin θ
±cos θ
±tan θ
square root cosine theta

Answer 1

Help please!

Answer 2

hint:

(1-costheta)(1+costheta) = 1 - cos^2(theta) = ?

(remember your trig identities)

Answer 3

No, itsbeen a long time

Answer 4

1 - cos^2(theta) = sin^2(theta)

then take the square root of that to get your answer

Answer 5

would it be:

sin θ

Answer 6

good

Answer 7

ok, thank you

Answer 8

for future reference

sin^2 + cos^2 = 1

Answer 9

Ohh, that i know that.

Answer 10

Thank you!