* arrow L (x) = 2 + x Problem 4: (Marks : 3) . Let f (x) = x^3 -12x + 7. f?(x) =

ID: 2839572 • Letter: #

Question

* arrow L (x) = 2 + x Problem 4: (Marks : 3) . Let f (x) = x^3 -12x + 7. f?(x) = 3x^2 - 12 Find the interval(s) on which f (x) is increasing and the interval(s) on which f (x) is decreasing. Then mark each of the following statements as TRUE or FALSE. (A) TRUE OR FALSE f(x) is increasing on the interval: (- 2, 2). (B) TRUE OR FALSE f(x) is increasing on the interval : (-infinity, -2) . (C) TRUE OR FALSE f(x) is increasing on the interval: (2, infinity) Problem 5: (Marks : 7). Find the critical num-