Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 31E
Related questions
Question
Find the exact value of each expression.
a) Cot-1(-√3) b) arccos(-1/2)
Expert Solution
Step 1
Range of Cot-1 is (0,π)
In this range, it will be negative in the 2nd quadrant.
So,
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