The derivative of cos hx/2w.r.to x is

If P(x)is a polynomial of 3^rd degree and P’’(1)=0, P’’’(1)=6 then P’’(0)=

Let f(x+y)= f(x)f(y) for all x,y ε R. If f is differentiable at x=0, then

The derivative of (log x)^xw.r.to x is

The derivative of cot^-1(cosec x-cot x) w.r.to x is

If (y=1/1+x+x²+x³) then y₂(0)=

The derivative of √(tan x+√tan x) w.r.t x is

d/dx{sin x/ 1+ cos x}=

d/dx{Tan^-1(x/1+√1-x²)}=

If x<1 then (1-2x/1-x+x²)+(2x-4x³/1-x²+x⁴)+(4x³-8x⁷/1-x⁴+x⁸)+...∞=