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[Post New]11 Jun 2007 16:17:11 IST
    Subject: Re:functions-1
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priyesh (1586)

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Olaaa!! Perrrfect answer. 256  [409 rates]
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hi joyfrancis
see
domain of fog(x)
={x : x  Dg , g(x)  Df}   (by definitio of domain of fog(x)
note: hereDg  & Df are domain of g & f respectively
 
therefore x  R & |2x+5|   Df
therefore        -5 <= |2x+5|  <=7
therefore domain of fog(x) is [-6 , 1]  
 
"Imagination is more important than knowledge."
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