352 CHAPTER 4 APPLICATIONS OF DIFFERENTIATION Exercises 1-6 Find the local and absolute extreme values of the function on the given interval. 1. f (x) = x3 - 6x2 + 9x + 1, [2, 4] 2. f (x) = xV1 - x, [-1, 1] 3. f ( x) = x2 + 1' L-2, 2 ]mohsen 160)17 4. f ( x) = Vx2 + x + 1, [-2, 1] 5. f (x) = x + 2 cosx, [- 1, 17] 6. f(x) = xex, [-1, 3 ] aoilsmixonggs leddint as asvid ()