[微積] 分段點的函數面積
Let f(x)= -2 if x=<-2
X if -2<x<1
X^1/2 if x>=1
Approximate the area of the surface obtained by revolving
f(x) on〔-3,4〕about the x-axis using frustrums of cones and
the subintervals 〔-3,-2〕〔-2,0〕〔0,1〕〔1,4〕
想請問這題是怎麼著手啊>"<
分開的兩個概念我會,只是併再一起...@@
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