※ 引述《kstmasa (鸡排)》之铭言：
: 题目:
: Find the volume of the solid whose base is bounded by the graphs of
: y = x + 1 and y = x^2 - 1 with the square cross sections taken perpendicular to
: the x-axis.
: 海大102转学考 微积分试题 第一题。
2
S [(x+1)-(x^2-1)]^2dx
-1
2
=S (-x^2+x+2)^2
-1
=8.1