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

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 sure to indicate whether you are using sum or difference and write out the formula in your work

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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