A. 1+2x/1+x+x2
B. 1-2x/1+x+x2
C. (1+2x)2/1+x+x2
D. (1+2x)3/1+x+x2
If y= ax2+b/x then x2y2=
If x= a cos θ (1+cos θ), y=sin θ(1+cos θ) then (dy/dx)θ=π/2
The derivative of √(Tan-1 x) w.r.to x is
If x2+xy+y2=a2, then y2=
If x= asin 2θ(1+ cos 2θ), y= bcos 2θ(1-cos 2θ), then dy/dx=
If x= 2/t2, y=t3-1, then d2y/dx2=
If y= xsin x+(sin x)x then dy/dx=
If y=Sin-1(x2-1/2) then dy/dx at x=0 is
If x= 2 cos t- cos 2t, y= 2 sin t- sin 2t then dy/dx=
d/dx{Tan-1√(1-cos x)/(1+cos x)}=