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1. (1 cos 0) (1 + cos 0) (1 + cot²0) = 1

1. (1 cos 0) (1 + cos 0) (1 + cot²0) = 1

Trigonometry (11th Edition)
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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Prove the given identities

1. 2. 2 cotx csc x = 3. 4. (1 cos 0) (1 + cos 0) (1 + cot²0) = 1 1 1 secx-1 secx + 1 5. sin²xcos³x = cos x(sin²x - 2sin¹x + sinºx) sin x - cos x sin x + cos x 2 sin ²x - 1 1 + 2 sin x cos x 2 tan x 1 1tan²x cos²x + 1 cos x + sinx cosx — sin x
Transcribed Image Text:1. 2. 2 cotx csc x = 3. 4. (1 cos 0) (1 + cos 0) (1 + cot²0) = 1 1 1 secx-1 secx + 1 5. sin²xcos³x = cos x(sin²x - 2sin¹x + sinºx) sin x - cos x sin x + cos x 2 sin ²x - 1 1 + 2 sin x cos x 2 tan x 1 1tan²x cos²x + 1 cos x + sinx cosx — sin x
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