Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Question
Which of the following statements establishes the identity?
O A. 1 1 1- sin 0 1+ sin 0 = 2 sec 20 1- cos 20 sin 20 OB. 1 1 2 2 = 2 sec 20 csc 0 1- sin 0 1+ sin 0 %3D 1- cos 0 1+ sin 20 OC. 1 1+ sin 0+1- sin 0 1 2 1- sin 0 %3D 1+ sin 0 = 2 sec 20 %3D (1- sin 0)(1 + sin 0) 1 sin 20 Csc 0 O D. 1 1 1+ sin 0 + 1- sin 0 2 2 = 2 sec 20 Cos 20 + %3D 1- sin 0 1+ sin 0 (1- sin 0)(1 + sin 0) 1- sin 20
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Transcribed Image Text:O A. 1 1 1- sin 0 1+ sin 0 = 2 sec 20 1- cos 20 sin 20 OB. 1 1 2 2 = 2 sec 20 csc 0 1- sin 0 1+ sin 0 %3D 1- cos 0 1+ sin 20 OC. 1 1+ sin 0+1- sin 0 1 2 1- sin 0 %3D 1+ sin 0 = 2 sec 20 %3D (1- sin 0)(1 + sin 0) 1 sin 20 Csc 0 O D. 1 1 1+ sin 0 + 1- sin 0 2 2 = 2 sec 20 Cos 20 + %3D 1- sin 0 1+ sin 0 (1- sin 0)(1 + sin 0) 1- sin 20
Establish the identity. 1 1 = 2 sec20 1- sin 0 1+ sin 0
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Transcribed Image Text:Establish the identity. 1 1 = 2 sec20 1- sin 0 1+ sin 0
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