Question: Find f@) when f@) csc c csc c(csc c cot2 c) csc c(cot2 c -4- csc2 c) csc c(cot2 c + csc2 c) csc

Find f"@) when f@) csc c csc c(csc c cot2 c) csc c(cot2 c -4- csc2 c) csc c(cot2 c + csc2 c) csc c(cot2 c csc c)
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