Question

Use trigonometric identities to transform the left side of the equation into the right side.

Answer 1

thanks

Answer 2

\[\sin ^2 \theta - \cos ^2\theta = 2 \sin ^2 \theta - 1\]

Answer 3

i've got it started and i have
\[\sin ^2\theta - (1- \sin ^2 \theta) = 2\sin ^2 \theta -1\]
idk what to do next...please help!!

Answer 4

@amy101 thanks for what?

Answer 5

Easy, distribute that negative :)

Answer 6

oh i see!! :) Thank you!

Answer 7

You're welcome~