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March 3, 2015

March 3, 2015

Posted by **maga** on Monday, April 2, 2012 at 12:48am.

∫R∫ lny/x dA

for the region R is the rectangle defined by 1<x<e^2 and 1<y<e

- calculus -
**Steve**, Monday, April 2, 2012 at 11:35am∫[1,e^2]∫[1,e] lny/x dy dx

= ∫[1,e^2](y/x (lny - 1))[1,e] dx

= ∫[1,e^2] [(e/x (1-1))-(1/x (0-1))] dx

= ∫[1,e^2] 1/x dx

= lnx [1,e^2]

= 2

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