Find the absolute extrema of the following functions on the given closed interval.
`f(x)=3x^(4)-4x^(3),[-1,2]`

Find the absolute extrema of the following functions on the given closed interval. f(x)=6x^(4/3)-3x^(1/3),[-1,1]

Find the absolute extrema of the following functions on the given closed interval. f(x)=x^(3)-12x+10,[1,2]

Find the absolute extrema of the following functions on the given closed interval. f(x)=2cosx+sin2x,[0,pi/2]

Find the absolute extrema of the function f(x)=3 cos x on the closed interval [0,2pi] .

Find the absolute maximum value and the absolute minimum value of the following functions in the given interval. (a) f(x) = x^(3), x in [-2,2]

Find the absolute maximum value and the absolute minimum value of the following functions in the given intervals: f(x) = x^3, x in [-2,2]