Prove that the following equation is an identity. 2 2 (3+ sinx) + cos x = 10 + 6 sinx

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Question
Prove that the following equation is an identity.
(3 + sin x)² + cos²x = 10 + 6 sinx
Choose the correct answer below.
2
2
O A. (3+ sin x)² + cos²x = 9+3 sin x + sin ²x + cos²x = 9+6 sinx-1= 10 + 6 sinx
2
2
O B. (3+ sin x)² + cos²x = 9+6 sinx+ sin ²x + cos²x = 9+6 sinx + 1 = 10 + 6 sinx
O C.
(3+ sin x)² + cos²x = 9+3 sinx+ sin ²x + cos²x = 9+6 sinx + 1 = 10 + 6 sinx
O D. (3+
sin x)²
2
2
+ cos²x = 9+6 sin x + sin x + cos
s²x = 9+6 sinx-1= 10 + 6 sinx
Transcribed Image Text:Prove that the following equation is an identity. (3 + sin x)² + cos²x = 10 + 6 sinx Choose the correct answer below. 2 2 O A. (3+ sin x)² + cos²x = 9+3 sin x + sin ²x + cos²x = 9+6 sinx-1= 10 + 6 sinx 2 2 O B. (3+ sin x)² + cos²x = 9+6 sinx+ sin ²x + cos²x = 9+6 sinx + 1 = 10 + 6 sinx O C. (3+ sin x)² + cos²x = 9+3 sinx+ sin ²x + cos²x = 9+6 sinx + 1 = 10 + 6 sinx O D. (3+ sin x)² 2 2 + cos²x = 9+6 sin x + sin x + cos s²x = 9+6 sinx-1= 10 + 6 sinx
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T o space p r o v e colon space open parentheses 3 plus sin open parentheses x close parentheses close parentheses squared plus cos squared open parentheses x close parentheses equals 10 plus 6 sin open parentheses x close parentheses

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