In which set the function `f(x)=|x-2|+|x-4|+|x-6|` is always decreasing is

In which of the following set the function f(x)=|x-2|+|x-4|+|x-6| is always decreasing

The interval for which the given function f(x)=2x^3-3x^2-36x+7 is decreasing , is

The interval on which the function f(x)=2x^(2)-3x is increasing or decreasing in :

Write the interval in which the function f(x)=cos x is strictly decreasing.

Find the intervals on which the function f(x) = 6 - 9x - x^(2) is (a) strictly increasing (b) strictly decreasing

Show that the function f(x)=4x^(3)-18x^(2)+27x7 is always increasing on R

Determine the intervals in which the function f(x)=x^(4)-8x^(3)+22x^(2)-24x+21 is decreasing or increasing.

Determine the intervals in which the function f(x)=x^(4)-8x^(3)+22x^(2)-24x+21 is decreasing or increasing.

the function f(x)=x^2-x+1 is increasing and decreasing

Find the intervals on which the function f(x) = 10 - 6x - 2x^(2) is (a) strictly increasing (b) strictly decreasing.