Involving tanh-1(z1/2)
Involving tanh-1(1/(-z)1/2) and cot-1(z1/2)
Involving tanh-1(1/(-z)1/2) and cot-1(1/z1/2)
Involving tanh-1(1/(-z)1/2) and cot-1(1/1/z1/2)