Involving cosh^-1(1+z/1-z)

Involving cosh^-1(1+z/1-z) and tanh^-1(z^1/2)

Involving cosh^-1(1+z/1-z) and tanh^-1(1/z^1/2)

Involving cosh^-1(1+z/1-z) and tanh^-1(1/z^1/2)