### Home > CALC > Chapter 1 > Lesson 1.3.2 > Problem 1-116

1-116.

Calculus problems often require using one or more of the trigonometric identities to solve problems. Solve each of the following equations where . Use exact values.

Simplify the left side of the equation to solve for

.

Remember thatand . Use the unit circle to solve for

.

See part (a).

See part (a).

See part (a).