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Mathematics, 31.03.2021 16:10 Morehollie9428
Use the unit circle and the sum OR difference identity for cosine to prove that
cos 180 = -1. Make sure to indicate whether you are using sum or difference
and write out the formula in your work
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Answers: 3
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Use the unit circle and the sum OR difference identity for cosine to prove that
cos 180 = -1. Make...
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