Find the volume obtained when the region between the graph of y =
根号（x2 + 1） and the x-axis,between x = 3 and x = 4,is rotated around the x-axis.
和微积分有关~
人气：123 ℃ 时间：2020-02-15 08:48:25
解答
y(x)=√(x²+1)
y(3)=√10
y(4)=√17
与 x 轴对称的值为:
-y(3)=-√10
-y(4)=-√17
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