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

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

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

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