Answer:
1. Apply a Pythagorean Identitie
2. Seperate the quotient into two terms.
3. Divide the common factor
4. Apply a reprical identity.
Explanation:
The steps below in the image I just wrote.
I am not sure if your teacher would let you have a cheat sheet on the test or quiz. Remember your reciprocal identities and Pythagorean identities.