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

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

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

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