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[Post New]4 Apr 2008 21:29:08 IST
    Subject: Re:please tell how to solve thew following problems:
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joyfrancis (1504)

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Olaaa!! Perrrfect answer. 236  [398 rates]
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q2)  y = x3 + x2 + x
 
y' = 3x2 + 2x + 1
 
for all real values of x ... y' > 0
 
.: -a/b > 0
 
.: ab < 0
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