Involving sec^-1(1/(1+c z²)^1/2)

Involving sec^-1(1/(1-z²)^1/2) and cosh^-1(z)

Involving sec^-1(1/(z²+1)^1/2) and cosh^-1(1+2 z²)

Involving sec^-1(1/(z²+1)^1/2) and cosh^-1((z²+1)^1/2)