Learning Task: Prove the following expression. 1. 1+ cos 20 - cos? 0 = cos-0 CSCX +secx 2. cotx+tan x

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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Proving Trigonometric Identities
Learning Task: Prove the following expression.
1. 1+ cos 20 - cos? 0 = cos-0
CSCX +secx
2.
cotx+tan x
CSc a+1
3.
CSca-1
1+sin a
1-sin a
Transcribed Image Text:Learning Task: Prove the following expression. 1. 1+ cos 20 - cos? 0 = cos-0 CSCX +secx 2. cotx+tan x CSc a+1 3. CSca-1 1+sin a 1-sin a
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