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![[Post New]](/templates/default/images/icon_minipost_new.gif) 21 Feb 2008 12:35:24 IST
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bhattji i think u didnt look at the question properly
the answer is going to b 0 only if either one of the functions is odd
bcos then f(-x)= - f(x) and similarly g(-x) = - g(x)
in this case answer is 0
now is both are even functions then given reduces to
integral 4 f(x) g (x)
this may b non zero
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