# Trigonometry Examples

Apply pythagorean identity.

Factor out of .

Cancel the common factors.

Factor out of .

Cancel the common factor.

Rewrite the expression.

Rewrite in terms of sines and cosines.

Multiply by the reciprocal of the fraction to divide by .

Write as a fraction with denominator .

Factor out the greatest common factor .

Cancel the common factor.

Rewrite the expression.

Divide by .

Divide by .

Multiply by .