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