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Verify the following identity. 1+ cos 2x cotx%D sin 2x

Verify the following identity. 1+ cos 2x cotx%D sin 2x

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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Verify the following the identity.

11 Homework: Section 20.3 Double Angle Formulas Verify the following identity. 1+ cos 2x cotx%D sin 2x Which of the following three statements verifies the given equation? 1+cos 2x 1+ (2 cos x-1) 2. -X_SO 2. 2 cos, X SO 2 sin x cos X sin 2x 2 sin x coSX 2. 1+ (2 cos²x+1) リ) 2. X SOJ 1+cos 2x sin 2x 2 sin x coSX 1+ cos 2x 2. 1+ (2 sin x-1 2. = cotx sin 2x 乙 2 sin x cos 2sin x cos X
Transcribed Image Text:11 Homework: Section 20.3 Double Angle Formulas Verify the following identity. 1+ cos 2x cotx%D sin 2x Which of the following three statements verifies the given equation? 1+cos 2x 1+ (2 cos x-1) 2. -X_SO 2. 2 cos, X SO 2 sin x cos X sin 2x 2 sin x coSX 2. 1+ (2 cos²x+1) リ) 2. X SOJ 1+cos 2x sin 2x 2 sin x coSX 1+ cos 2x 2. 1+ (2 sin x-1 2. = cotx sin 2x 乙 2 sin x cos 2sin x cos X
Expert Solution
Step 1

Recall:

  • sin2x = 2 sinx cosx
  • cos2x = 2cos2x -1
  • cotx = cosxsinx
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