Involving sech^-1(2^1/2(z²-1)^1/4/((z²-1)^1/2-z)^1/2)

Involving sech^-1(2^1/2(z²-1)^1/4/((z²-1)^1/2-z)^1/2) and coth^-1(z)

Involving sech^-1(2^1/2(z²-1)^1/4/((z²-1)^1/2-z)^1/2) and coth^-1(1/z)