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rahe50 rahe50
  • 06-02-2017
  • Mathematics
Answered

xy=7, x=0, y=7 and y=9 revolves around the x axis

Verified Answer :

LammettHash
LammettHash LammettHash
  • 06-02-2017

With shells, the volume is given by

\(2\pi\displaystyle\int_7^9\frac7y\times y=14\pi\int_7^9\mathrm dy=28\pi\)

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