Involving sin-1(z2+c/z21/2)
Involving sin-1(z2-1/z21/2) and cosh-1(1/z)
Involving sin-1(z2+1/z21/2) and cosh-1(1+2 z-2)
Involving sin-1(z2+1/z21/2) and cosh-1((z-2+1)1/2)
