### Home > APCALC > Chapter 6 > Lesson 6.2.2 > Problem 6-75

6-75.

Review the trigonometric Pythagorean identities listed below. Homework Help ✎

Use one of the equations to write a new expression for

. Similarly, write a new expression for

. Refer to part (a).

Similarly, write a new expression for

. Refer to part (a).