sqrt acot sec tan exp log x0 
Mul Pow Mul 2 sqrt acot sec tan exp log x0 -1 Mul -1 Mul Mul Mul tan tan exp log x0 sec tan exp log x0 Mul Pow sec exp log x0 2 Mul exp log x0 Pow x0 -1 Pow Add 1 Mul sec tan exp log x0 sec tan exp log x0 -1 