At `x=(5pi)/6,\ \ f(x)=2sin3x+3cos3x` is (a) 0 (b) maximum (c) minimum (d) none of these

At x=(5 pi)/(6),f(x)=2sin3x+3cos3x is

At x = (5pi)/(6), f(x)= 2sin 3x+3 cos 3x is

At x = 5pi/6 , f(x) = 2 sin 3x + 3 cos 3 x is

At x=(5pi)/(6), f(x)=2 sin 3x + 3 cos (3x) is ……………

Let f(x)=x^(3)+3x^(2)-9x+2. Then,f(x) has a maximum at x=1 (b) a minimum at x=1( c) neither a maximum nor a minimum at x=-3(d) none of these

Let f(x)=x^3+3x^2-9x+2 . Then, f(x) has a maximum at x=1 (b) a minimum at x=1 (c) neither a maximum nor a minimum at x=-3 (d) none of these

At what points, f(x)=1+2 sin x + 3 cos^(2)x, 0 lt x lt (2pi)/(3) has maximum or minimum ? Find the maximum and minimum value of the function.

Let f(x) be a function defined as follows: f(x)=sin(x^2-3x),xlt=0; a n d6x+5x^2,x >0 Then at x=0,f(x) has a local maximum has a local minimum is discontinuous (d) none of these

Let f(x) be a function defined as follows: f(x)=sin(x^(2)-3x),x 0 Then at x=0,f(x) has a local maximum has a local minimum is discontinuous (d) none of these

If f(x)=0 is a quadratic equation such that f(-pi)=f(pi)=0 and f((pi)/(2))=-(3 pi^(2))/(4) then lim_(x rarr-pi)(f(x))/(sin(sin x)) is equal to (a)0( b) pi (c) 2 pi (d) none of these