If `f(x)=tanx and A,B,C` are the anlges of `/_\ABC, then |(f(A), f(pi/4) f(pi/4)), (f(pi/4), f(B) f(pi/4)), (f(pi/4), f(pi/4) f(C))|= (A) 0 (B) -2 (C) 2 (D) 1

f:R rarr R , f(x)=tan^(-1)(2^x) + k is an odd function, then k= (A) -pi/4 (B) (pi)/(4) (C) -(pi)/(2) (D) (pi)/(2)

If f(x)=|cos x|, find f'((pi)/(4)) and f'((3 pi)/(4))

If f(x)=|cos x|, find f'((pi)/(4)) and f'((3 pi)/(4))

If f(x)=e^xsinx in [0,\ pi] , then c in Rolles theorem is pi//6 (b) pi//4 (c) pi//2 (d) 3pi//4

f(x)=cos2x, interval [-(pi)/(4),(pi)/(4)]

If f(x)=-int_(0)^(x) log (cos t) dt, then the value of f(x)-2f((pi)/(4)+(x)/(2))+2f((pi)/(4)-(x)/(2)) is equal to

Range of function f(x)=arccot(2x-x^(2)) is [(pi)/(4),(3 pi)/(3)](b)[0,(pi)/(4)][0,(pi)/(2)] (d) [(pi)/(4),pi]

f(x)=min(sin x,cos x),x in(-pi,pi) the values of x where f(x) is non differentiable,is the set A. Then A is subset of (A) {(-3 pi)/(4),(-pi)/(4),(3 pi)/(4)}(B){(-pi)/(4),(pi)/(4),(3 pi)/(3)}(C){(-3 pi)/(4),(3 pi)/(4)}(D){(-3 pi)/(4),(pi)/(4),(pi)/(4),(3 pi)/(4)}

(2)/(x-f((pi)/(12)))+(3)/(x-f((pi)/(4)))+(4)/(x-f((5 pi)/(12)))=0