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

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

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

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