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Mul Pow Add Add Pow acoth x0 Add Add cot sec x0 Mul x0 x6 -5 -5 x0 Add x1 -1 Mul x1 Add Mul Pow acoth x0 Add Add Add cot sec x0 Mul x0 x6 -5 -1 Add Mul Add Add cot sec x0 Mul x0 x6 -5 Pow Add 1 Mul -1 Mul x0 x0 -1 Mul Mul acoth x0 log acoth x0 Add Mul Mul -1 Pow csc sec x0 2 Mul tan x0 sec x0 x6 1 