Involving coth^-1((1-z²)^1/2+a/z)

Involving coth^-1((1-z²)^1/2+1/z) and tanh^-1(z)

Involving coth^-1((1-z²)^1/2+1/z) and tanh^-1(1/z)

Involving coth^-1((1-z²)^1/2-1/z) and tanh^-1(z)

Involving coth^-1((1-z²)^1/2-1/z) and tanh^-1(1/z)