Find the approximate area under the curve of the given equation by dividing the indicated intervals into n subintervals and then add up the areas of the inscribed rectangles. There are two values of n and therefore two approximations for the area. The height of each rectangle may be found by evaluating the function for the proper value of X. 9 y = * 2 between x = 1 and x = 5 for (a) n = 4, (b) n = 8 . . . 9 (a) The approximate area under the curve y = for n = 4 rectangles is 4.173 . (Round to three decimal places as needed.) 9 (b) The approximate area under the curve y = for n = 8 rectangles is (Round to four decimal places as needed.)