If `f(x)=(x+1)tan^(-1)(e^(-2x))`, then f'(0) is

If f(x)=lim_(t to 0)[(2x)/(pi).tan^(-1)(x/(t^(2)))] ,then f(1) is …….

If f(x)=lim_(t to 0)[(2x)/(pi).tan^(-1)(x/(t^(2)))] ,then f(1) is …….

If f(x)=lim_(t to 0)[(2x)/(pi).tan^(-1)(x/(t^(2)))] ,then f(1) is …….

If f(x)=lim_(t to 0)[(2x)/(pi).tan^(-1)(x/(t^(2)))] ,then f(1) is …….

If f(x) = tan^-1 {1/x (sqrt(1+x^2))} then f'(0) is

If f(x) = log_e ((1-x)/(1+x)) , then f' (0) is

Suppose for a differentiable function f,f(0)=0,f(1)=1 and f(0)=4=f'(1) If g(x)=f(e^(x))*e^(f(x)) then g'(0) is

IF f(x) = tan x+e^(-2x)-7x^(3) , then what is the value of f'(0)?