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

Involving sech^-1(z-1/z+1) and tan^-1((-z)^1/2)

Involving sech^-1(z-1/z+1) and tan^-1(1/(-z)^1/2)

Involving sech^-1(z-1/z+1) and tan^-1((-1/z)^1/2)