Precalculus Archive: Questions from May 31, 2023
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Please help. I keep getting csc (x) csc (y) cos (x-y)
Simplify the following expression. (Chapter 9) \[ \frac{\cos (x-y)}{\sin x \sin y} \] Select the correct response: \[ \cot (x+y) \] \( \cot x \cot y+1 \) \[ \begin{array}{l} \frac{\cos (x+y)+\sin (x+y2 answers -
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13. If \( y=e^{k} \), then \( \frac{d^{5} y}{d x^{5}}= \) a. \( k^{5} e^{t} \) b. \( k^{5} e^{\mu} \) c. \( 51 e^{4} \) d. \( 51 e^{x} \) e. \( 5 e^{20} \)2 answers