問題詳情

11. Let A be the region bounded above by the graph of y = sin(πx) and below by thegraph of y = x3 - 4x.
(A)(2.1,0.8) falls into the region A.
(B) The area of A can be represented by

dx.
(C) The area of A is equal to 4.
(D)The region A is the base of a solid. For this solid, each cross section per- pendicular to the a-axis is a square.The volume of this solid is equal to

dx.
(E)The region A models the surface of a small pond. At all points in Atance :i from the y-axis, the depth of the water is given by h(x) = 3-x. Theyolume of water in the pond is equal to

dx.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增