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Arjun (812)

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Olaaa!! Perrrfect answer. 142  [193 rates]

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hiiiiii........
 
using integration by parts.......
here I =e-t f(x-t)dt
I=f(x-t)e-t.dt+f'(x-t).-e-t.dt
 
I=-f(x-t)e-t  -f'(x-t).-e-tdt
 
I =-f(x-t)e-t -[ e-t.f'(x-t)dt +e-t     f'(x-t)dt
 
I=-f(x-t)e-t -[ -f(x-t)e-t +e-t f(x-t)dt]
 
I =-f(x-t)e-t +f(x-t)e-t  -e-t f(x-t)dt
 
2I =0
 
I =0
 
so therfore
 
f(x) =x2 +I
 
f(x) =x2   as I=0
 
answer
f(x) =x2  
 
is da method correct.....plzz correct if wrong......
 
thank u......
 
 
 

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