Mathematics, 24.07.2019 13:00 emilypzamora11
Justin wants to evaluate 3cot(- \frac{5\pi}{4} ). which of the following identities can be used to him? select all that apply. the answers to this question are: cot(-θ)=-cot(θ) and cot(θ+\pi )=cot(θ) i understand the first answer, but how did they get the second one?
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Justin wants to evaluate 3cot(- \frac{5\pi}{4} ). which of the following identities can be us...
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