Find the derivative of: f(z) = V(+1) . V(x-1). O Cannot be determined. O f' ( z ) = " (2+ 1)3(2 - 1)3 + 2(2 -1):(2 + 1): Of(z) - 3(z + 1) 3 + 2(2 - 1) 4 (z - 1) 4 (z + 1) 3 Of(z ) 3( 2+1)3 + 2(z - 1) 4(x - 1) 4 3(x + 1) 3