How do you simplify #\frac{\sin^4 \theta - \cos^4 \theta}{\sin^2 \theta - \cos^2 \theta} # using the trigonometric identities?
1 Answer
Dec 22, 2014
You should get:
This is because in the numerator you have:
(Remember that
So your fraction becomes:
You can now simplyfy the two:
You are left with: