Mathematics

Mathematics

Problem

Let ff be a differentiable function whose derivative is given by f′(x)=(x−2)(x+1)(x−5).f'(x)=(x-2)(x+1)(x-5). Which of the following lists all intervals on which ff is increasing? a) (−∞,−1) and (2,5)(-\infty,-1) \text{ and } (2,5) b) (−∞,−1) and (2,∞)(-\infty,-1) \text{ and } (2,\infty) c) (−1,2) and (5,∞)(-1,2) \text{ and } (5,\infty) d) (−∞,−1),(−1,2), and (5,∞)(-\infty,-1), (-1,2), \text{ and } (5,\infty)

Browse the problem library