- #1
mxthuy95
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Homework Statement
Consider the region bounded by the curves y= lnx and y=( x-3)^2
Find the volume of the solid obtained by rotating the region about the y-axis
Homework Equations
The Attempt at a Solution
For this I solve for the x so i got x= e^y and x= (y)^(1/2) +3
and for volume equation i got :
1.47
∫ ((y)^(1/2) +3)^2 - (e^y)^2 = 12.481(pi). My answer is
0
different from the book. So can someone point out wat i done wrong and help me to get the right answer
Thank you