Question: proving trigonometric identities (please show work!) 5. cot'0 = csc 0-csc 0. sing 7. 1 + sin20 - 1+ csc 0 1+ coto

proving trigonometric identities (please show work!)

5. cot'0 = csc 0-csc 0. sing 7. 1 + sin20 - 1+ csc 0 1+ coto
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