Ask Question
27 January, 18:44

Look at the function f (x) = x3 - 4 x. which describes an interval in which the function is increasing?

+3
Answers (1)
  1. 27 January, 20:28
    0
    Differentiate it

    get f ' (x) = 3x^2-4

    put 3x^2-4=0

    x=2/√3,-2/√3

    so interval

    x∈ (-2/√3,2/√3)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Look at the function f (x) = x3 - 4 x. which describes an interval in which the function is increasing? ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers