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Sin 2B Cos2B 17. tan 2B = 289 289 %3D cos(a – B) = CosACosB+ SinA 18. %3D Sin2B=2Sin BCesB 17

Sin 2B Cos2B 17. tan 2B = 289 289 %3D cos(a – B) = CosACosB+ SinA 18. %3D Sin2B=2Sin BCesB 17

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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Did I do 17 and 18 right?

Sin 2B 17. tan 26 = CoszB 289 229 cos(a- B)= CosACosB+ SinA SinB 18. Sin2B=2Sin BlesB 15 17 5. 2. 30 51 255 9 30 +85 51 289 415 15675 260 240 240 284
Transcribed Image Text:Sin 2B 17. tan 26 = CoszB 289 229 cos(a- B)= CosACosB+ SinA SinB 18. Sin2B=2Sin BlesB 15 17 5. 2. 30 51 255 9 30 +85 51 289 415 15675 260 240 240 284
Given: sin a Зл 2 Зл cos B = B3= <BS 2n 2 Cos 17 3' cosa={/ - sn'a -sina 2. sin ß = |) - CosB 2. %3D Cos? 15 Cós Sin? B =1-%a b83 3. Cas'a =1=64/ Sin?B=15/ Sin B=15% こ 17 %3D 289 1.
Transcribed Image Text:Given: sin a Зл 2 Зл cos B = B3= <BS 2n 2 Cos 17 3' cosa={/ - sn'a -sina 2. sin ß = |) - CosB 2. %3D Cos? 15 Cós Sin? B =1-%a b83 3. Cas'a =1=64/ Sin?B=15/ Sin B=15% こ 17 %3D 289 1.
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