A. -1/x√(x2-1)
B. 1/x√(x2-1)
C. 2/(x√x2+1)
D. -2/x√(x2+1)
If x= a(θ+sin θ), y=a(1-cosθ) then d2y/dx2 at θ=π/4 is
d/dx{Tan-1x/√1-x2+Sec-11/√1-x2}=
d/dx{Tan-1√(x2/a2-x2)}=
If y=sin(sin x)then y2+(tan x)y1+y(cos2x)=
The derivative of Sin-1(3x-4x3) w.r.to Tan-1x/√ (1-x2) is
d/dx{sin2((1-x2)/(1+x2))}
If y=e-kx/2(a cos nx+b sin nx) then y2+ky1+(n2+k2/4)y=
d/dx{(2x-3)/(3x+1)}=
If y2=(x-a)(x-b) then d3/dx3[(d2y/dx2)-2/3]=
If y=(5x+7/2x-3) then y2=