Involving sec^-1((2(1+z²)^1/2/((1+z²)^1/2-1))^1/2)

Involving sec^-1((2(1+z²)^1/2/((1+z²)^1/2-1))^1/2) and cot^-1(z)

Involving sec^-1((2(1+z²)^1/2/((1+z²)^1/2-1))^1/2) and cot^-1(1/z)