1.If cos(f(x)) = (1-x²)/(1+x²) and tan(g(x)) = (3x-x³)/(1-3x²), then df/dg =a.3/2b.(1+x²+2x³)/(1-3x²)²c.2/3d.(x²+x³)/(1+x²)(1-3x²)Login to continueOnly logged in users canattempt or see the solution.
