If `f(x)=tan^(2)((pi x)/6)`,then `f'(2)`

If f(x)=sqrt(1+cos^(2)(x^(2))), then f'((sqrt(pi))/(2)) is (sqrt(pi))/(6)(b)-sqrt(pi/6)1/sqrt(6)(d)pi/sqrt(6)

If f(x)=|x|^(|tan x|) then f'(-(pi)/(6)) is equal to

If f(x)=(2tan x)/(1+tan^(2)x) then value of f((pi)/(4)) will be

If f (x) = tan ^(-1)sqrt((1 + sin x )/(1 - sin x)), 0 le x le (pi)/(2) then f' ((pi)/(6)) =?

If f(x)=(x-2)/(x), then in [0,pi] (A) both tan(f(x)) and (1)/(f(x)) are continuous.(B) tan(f(x)) is continuous but f^(-1)(x) is not continuous (C) tan (f^(-1)x) and f^(-1)x are discontinous (D) none of these

If f(x)={sin((a-x)/(2))tan[(pi x)/(2a)] for x>a and ([cos((pi x)/(2a))])/(a-x) for x

If f'(x) = tan^(-1)(Sec x + tan x), x in (-pi/2 , pi/2) and f(0) = 0 then the value of f(1) is

Let f(x)={(tan)(pi)/(4)+tan x}{(tan)(pi)/(4)+(tan)((pi)/(4)-x)} and g(x)=x^(2)+1 Then g{f(x)}+f'(x)=