Re: [積分] 求體積 Find the volume of solid

[Laoda245566 ()]

※ 引述《kstmasa (雞排)》之銘言：
: 題目:
: 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轉學考 微積分試題 第一題。

 2
S  [(x+1)-(x^2-1)]^2dx
 -1

  2
=S  (-x^2+x+2)^2
  -1


=8.1


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推 kstmasa     :感恩 :)