Find the intervals in which the given function increases or decreases `f(x)=(x^2+x+1)/(x^2-x+1)`

Find the intervals in which the function is increasing or decreasing: f(x) = log(1+x) - (2x)/(2+x)

Find the intervals in which the following function are increasing or decreasing. f(x)=10-6x-2x^2

Find the intervals in which the following functions is increasing or decreasing. f(x) = - 2x^(3) - 9x^(2) - 12x + 1

Find the intervals in which the function is (a) increasing, (b) decreasing: f(x) = (x + 1)^(3) (x - 3)^(3) .

Find the intervals in which the following functions are increasing or decreasing : cos^-1((1-x^2)/(1+x^2))

24.Find the intervals in which the following function is (a) increasing and (b) decreasing f(x)=2x^(3)+9x^(2)+12x-1

Find the intervals in which the following functions are (a) increasing (b) decreasing : f(x)=2x^(3)-15x^(2)+36x+1

24. Find the intervals in which the following function is (a) increasing and (b) decreasing f(x)=2x^3+9x^2+12x-1

Find the intervals in which the functions are strictly increasing or decreasing: -2x^(3)-9x^(2) -12x+1

Find the intervals in which the functions are strictly increasing or decreasing: -2x^(3)-9x^(2) -12x+1