Find the intervals in which the function `f(x)=x^4-(x^3)/3` is increasing or decreasing.

Find the interval in which the function f(x)=x^(4)+32x is increasing or decreasing. x in R

Find the intervals in which the function f(x)=2x^3-24x+25 is increasing or decreasing.

If f(x)=x^3+3x^2-9x+4 is a real function Find the intervals in which the fuction is increasing or decreasing.

Find the intervals in which the function f(X) = (x-1)^3(x-2)^2 is increasing or decreasing.

Find the intervals in which the function f(x)=(x+1)^3(x-3)^3 strictly increasing or decreasing.

Find the intervals in which the function f(x)=(x+1)^(3)(x-3)^(3) is decreasing.

Find the interval in which the function f(X) = x^4 - (4x^3)/(3) is strictly increasing.

Find the interval for which the function f(x) = tanx- 4 (x- 2) is increasing and decreasing in (-pi/2,pi/2) .

Find the intervals in which the following functions is increasing or decreasing. f(x) = (3)/(2) x^(4) - 4x^(3) - 45x^(2) + 51

Find the intervals in which the following functions is increasing or decreasing. f(x) = 3x^(4) - 4x^(3) - 12x^(2) + 5