5. Is the following expression an identity? Explain your reasoning. cos²0 - sin²0 cos20+ sin cos 0 = 1- cot0

Trigonometry (MindTap Course List)
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ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
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Chapter4: Graphing And Inverse Functions
Section4.1: Basic Graphs
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5. Is the following expression an identity? Explain your reasoning.
cos²0 - sin²0
cos²0+ sin cos 0
= 1- cot0
Transcribed Image Text:5. Is the following expression an identity? Explain your reasoning. cos²0 - sin²0 cos²0+ sin cos 0 = 1- cot0
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