CUET Mathematics - For the function y(x)=sqrt(x+1)-sqrt(x-1), which of the following are true? (A) (dy/dx)_at x=2=1-sqrt(3)2sqrt(3) (B) (x^2-1)d^2y/dx^2-dy/dx+4y=0 (C) (x^2-1)(dy/dx)^2-4y^2=0 (D) If P(x)d^2y/dx^2+Q(x)dy/dx+ y=0, then P(x)-xQ(x)-4=0 Choose the correct answer from the options given below: | PYQs + Solutions | AfterBoards