2 Solve cos 2x - 2 sinx-cos²x = -3 on the interval x € [0,21].

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 50E
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1. Solve cos 2x - 2 sinx-cos²x = -3 on the interval x € [0, 2π].
Transcribed Image Text:1. Solve cos 2x - 2 sinx-cos²x = -3 on the interval x € [0, 2π].
15. How many solutions exist for sin x cos x = 0 in the interval x = [0, 2+]?
2
b.
3
C.
4
a.
d. 5
Transcribed Image Text:15. How many solutions exist for sin x cos x = 0 in the interval x = [0, 2+]? 2 b. 3 C. 4 a. d. 5
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