sec Mul x0 sec Add x6 sech x0 
Mul Mul tan Mul x0 sec Add x6 sech x0 sec Mul x0 sec Add x6 sech x0 Add sec Add x6 sech x0 Mul x0 Mul Mul tan Add x6 sech x0 sec Add x6 sech x0 Mul tanh x0 Mul -1 sech x0 