5. Inverse Trigonometric Functions and Basic Trigonometric Equations

5. Inverse Trigonometric Functions and Basic Trigonometric Equations / Inverse Sine, Cosine, & Tangent / Problem 4

For the following trigonometric expression, evaluate and give the answer as an exact value in radians.
cos^{- 1}((√2)/2)

π/2

π/3

π/4

π/6

For the following trigonometric expression, evaluate and give the answer as an exact value in radians.cos- 1((√2)/2)