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Add atan acosh Pow -0.999909204262595 x7 Add Pow sech x0 2 Mul -1 Mul Mul Mul tan cot x0 sec cot x0 Mul -1 Pow csc x0 2 Pow Mul Mul sqrt Add 1 Mul -1 Pow Mul sec cot x0 sec cot x0 -1 sec cot x0 sec cot x0 -1 