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)