A. log(x-√(1-x2)
B. 1/2 log(x+√(1+x2)
C. sinh-1 x
D. none
d/dx{√(1+cos x)/sin x}=
If y={sin x/2 sin x2/2. Sin x3/23...sin xn/2n}then dy/dx=
If y=acos2x+b sin2x, then y2+4y=
d/dx{cos[2 sin-1(cos x)]}=
If y=(ax+b/cx+d) then 2y1y3=
d/dx{Sin-12x/1+x2+Sec-11+x2/1-x2}=
The derivative of (ax+b)cx+d w.r.to x is
If x=e2tcos 3t, then d2x/dt2 at t=π/2 is
If xy=c2 then dy/dx=
If y= log sin x then y2=