The integral you need is π∫(1/(1+x2)2 dx from 0 to 10.
The substitution x=tan θ will get you an easy integral.
BTW I think this is usually called the "washer" or "disk" method and y is the radius of the disk.
Tren J.
asked 05/08/23Find the exact volume of the solid obtained by revolving the region bounded by ,
,
and
about the x-axis.
The integral you need is π∫(1/(1+x2)2 dx from 0 to 10.
The substitution x=tan θ will get you an easy integral.
BTW I think this is usually called the "washer" or "disk" method and y is the radius of the disk.
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