Re: isi 2010 Q23

Posted by Abhitesh on Mar 16, 2017; 8:30am
URL: http://discussion-forum.276.s1.nabble.com/isi-2010-Q23-tp7603463p7603467.html

Find f(ax1, ax2) .Note to change the limit as well.
Substitute w' = w/a.
=> dw = adw'
Limits : w=0 => w'=0 ; w=a*sqrt(x1^2 + x2^2) => w' = sqrt(x1^2 + x2^2)
The integral is same as f(x1, x2). So f(ax1, ax2) = a*f(x1, x2)