Home > PCT > Chapter Ch6 > Lesson 6.2.2 > Problem 6-90
6-90.
Simplify:
1. Distribute
2. Change to sine and cosines.
3. Get a common denominator.
4. Simplify.
5. Use a Fundamental Pythagorean Identity.
Simplify:
1. Distribute
2. Change to sine and cosines.
3. Get a common denominator.
4. Simplify.
5. Use a Fundamental Pythagorean Identity.