8y = x², y = VT; about the y-axis Answer 2 7(8y – y^) dy

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter10: Analytic Geometry
Section10.6: The Three-dimensional Coordinate System
Problem 21E
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Set up, but do not evaluate, an integral for the volume of the solid obtained by rotating the region bounded by the given curves about the specified line.  See photo. 

I understand that I already have the answer because the answer is already given to me but can you explain the answer. Not sure how they got there.

 

8y = x², y = V¤; about the y-axis
Answer
2
T(8y – y4) dy
Transcribed Image Text:8y = x², y = V¤; about the y-axis Answer 2 T(8y – y4) dy
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