Verifying Trig Identities #11

The first suggestion in verifying a trig identity is to simplify the more complicated side. Then, find common denominators. After that, change all the trig functions in terms of sine and cosine. Finally, use an identity! The goal in verifying trig identities is to make it equal to the other side of the equation. If you do not get it the first time, do not be discouraged and try it again. Using identities is the most important suggestion.