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Which of the following trigonometric equations is NOT identity? 1. (1- cos z) (1+ cot? a) = 0 %3D II. (sin z+ cos z)² = 1 sin(-2) III. cos(-a) tan(-2) %3D = 1 %3D sin z+1 IV. sin z cot %3D 1-csc z O no correct answer O , II, & IV only O I, II, III & IV O I, II, & III only O , II, & IV only

Which of the following trigonometric equations is NOT identity? 1. (1- cos z) (1+ cot? a) = 0 %3D II. (sin z+ cos z)² = 1 sin(-2) III. cos(-a) tan(-2) %3D = 1 %3D sin z+1 IV. sin z cot %3D 1-csc z O no correct answer O , II, & IV only O I, II, III & IV O I, II, & III only O , II, & IV only

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 69E
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Which of the following trigonometric equations is NOT identity? 1. (1– cos 2) (1+ cot? a) = 0 II. (sin z+ cos z)² = 1 sin(-2) III. cos(-a) tan(-2) =1 sin z+1 IV. sin z cot z 1-csc z O no correct answer O I, II, & IV only O I, II, II & IV O I, I, & III only O I, II, & IV only
Transcribed Image Text:Which of the following trigonometric equations is NOT identity? 1. (1– cos 2) (1+ cot? a) = 0 II. (sin z+ cos z)² = 1 sin(-2) III. cos(-a) tan(-2) =1 sin z+1 IV. sin z cot z 1-csc z O no correct answer O I, II, & IV only O I, II, II & IV O I, I, & III only O I, II, & IV only
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