[考古] 98成大
8. Find the area of the surface by revolving
the cycloid x(t)=t-sin(t) , y(t)=1-cos(t) 0<=t<=2π
about the x-axis
呃 這題書上沒有解答不知道版上哪位好心人可以提供解答感激不盡QQ
然後還有一題@@
100年的第4題 Find the area of the surface generate by revolving
the curve 6xy=x^4+3 from x=1 to x=3 about the x-axis
這題王伯的解答好像算體積 所以我的疑問是這題是算體積還是..表面積@@?!
請問有大大可以提供解答嗎 因為小弟用表面積公式算到一半...
積不出來=口="太慚愧了 謝謝!
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