In Problems 6469, find the exact value of each expression. cos[tan-(-1) + cos--)]
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In Problems 64–69, find the exact value of each expression.
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cos[tan-¹(-1) + cos-¹-)]
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Precalculus Concepts Through Functions A Unit Circle Approach To Trigonometry
ISBN: 9780137945139
5th Edition
Authors: Michael Sullivan
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