Involving coth^-1(2z^1/2/1+z)

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

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

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