Read all directions carefully. Circle or box all final answers.
1. Evaluate each expression without using a calculator. Write your answers in radians.
a. ( )1 32cos
−
− b. ( )1 1
2
sin
−
−
c. ( )1cos 1− − d. ( )1tan 3− −
Math 347 – Skills for Trigonometry
Worksheet – Inverse Trigonometric Functions
Name _________________________
2. Find the exact value of each expression without using a calculator.
a. ( )1 32sin sin
−
b. ( )( )1 12sec sin
−
−
c. ( )( )1 3cos cos
− − d. ( )1sin sin 330−
3. For each of the following, find an equivalent algebraic expression using x only that does not
include any trigonometric functions.
a. ( )1cos sin x− b. ( )1tan cos x−
Read all directions carefully. Circle or box all final answers.
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