Work each of the following problems on your calculator. Do not write down or round off any intermediate answers.   cos 2 580  + sin  2 580

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.5: Multiple-angle And Product-to-sum Formulas
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Work each of the following problems on your calculator. Do not write down or round off any intermediate answers.

 

cos 2 58 + sin  2 580

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