8. (a) Solve (+1)(x-3) 20. (z+4) (b) Prove that cos 2x = Use this identity to show that tan 67° = 1+ (c) Express - as an equivalent fraction with rational denominator. √3+√2 1-tan2
8. (a) Solve (+1)(x-3) 20. (z+4) (b) Prove that cos 2x = Use this identity to show that tan 67° = 1+ (c) Express - as an equivalent fraction with rational denominator. √3+√2 1-tan2
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 24E
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