QUESTION 1 Let f (x) = -x3- 6x2-9x + 3. Find all points of absolute minima and maxima on the interval [- 3, - 1]. As your answer input the sum of the values of f at all points the absolute minima and maxima occure in the given interval. QUESTION 2 Let f (x) =x4- 3x2+ 4. Find all points of absolute minima and maxima on the interval [- 1, 1 ]. As your answer input the sum of the values of f at all points the absolute minima and maxima occure in the given interval. QUESTION 3 Let f (ac) = 22 In ac - 1. Find all points of absolute minima and maxima on the interval [0.5, 2). As your answer input the sum of the values of f at all points the absolute minima and maxima occure in the given interval. Your answer need to be in the decimal form with three significant digits after decimal point