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Add Mul Pow sec sech x2 Add Mul x7 Pow Pow asech x0 0.525097068492740 x0 -1 Mul Mul sec sech x2 log sec sech x2 Mul x7 Mul Pow Pow asech x0 0.525097068492740 Add x0 -1 Add Mul x0 Mul Pow asech x0 -0.474902931507260 Mul 0.525097068492740 Pow Mul Mul x0 x0 sqrt Add 1 Mul -1 Pow Mul x0 x0 -1 -1 Mul Pow asech x0 0.525097068492740 log Pow asech x0 0.525097068492740 1 