The Unit Circle Exercises

Example 1

Solve

Hint

Example 2

Solve sec (5t) = -1 on the interval [π, 2π].

Hint

(something) = π + 2πn

Example 3

Solve (cos 2t)(sin (π – t)) = 0 on.

Hint

Include all the solutions for (cos 2t = 0) and (sin (π – t) = 0).

Example 4

Solve the interval [0, 6π].

Hint

Example 5

Solve -2sin (2π + t) = 1 on the interval [0, π].

Hint