Question

Help please!

Answer 1

How do I find out if this is an identity or not?

Answer 2

@jdoe0001

Answer 3

ok well.. .let's say if we solve \(\bf sin^2(\theta)+cos^2(\theta)=1\implies sin^2(\theta)=?\)

Answer 4

1/2[1 – cos(2x)]?

Answer 5

what do you mean? if you were to solve for \(sin^2\)

\(\bf sin^2(\theta)+cos^2(\theta)=1\implies sin^2(\theta)=?\)

Answer 6

Oh okay would it just be cos^2?

Answer 7

ahm nope

Answer 8

notice, you have a = 1

Answer 9

I'm really not sure. Is it equal to one?

Answer 10

@jdoe0001

Answer 11

step 1: just multiply it out
step 2: should be obvious....honestly.