Involving cosh-1(((1-z2)1/2-1)1/2/(21/2 (1-z2)1/4))
Involving cosh-1(((1-z2)1/2-1)1/2/(21/2 (1-z2)1/4)) and coth-1(z)
Involving cosh-1(((1-z2)1/2-1)1/2/(21/2 (1-z2)1/4)) and coth-1(1/z)