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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Verify the identity
cos*0-sin40 2. =1- tan20 cos20
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Transcribed Image Text:cos*0-sin40 2. =1- tan20 cos20
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