# answer me

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• Jan 21st 2009, 08:11 AM
kajol
answer me
find the volume of the solids generated by revolving the regions bounded by the lines and curves about x-axis
y=square root cosx where 0 less than or equal to x less than or equal to pie/2 and y=0 x=0
• Jan 21st 2009, 09:01 AM
Grandad
Volume of revolution
Hello kajol
Quote:

Originally Posted by kajol
find the volume of the solids generated by revolving the regions bounded by the lines and curves about x-axis
y=square root cosx where 0 less than or equal to x less than or equal to pie/2 and y=0 x=0

$V = \int_0^{\frac{\pi}{2}}\pi y^2dx$

$= \pi\int_0^{\frac{\pi}{2}}\cos x dx$

Can you do it now?

Grandad
• Jan 24th 2009, 05:13 AM
kajol
reply of the post
yes sir now i can do it continue.thanks for solving my help
(Rofl)