IIT JEE , AIEEE Forum - Mathematics , Differential Calculus - RD SHARMA..find the condition such that x3+ax2+bx+c has a local maxima at certain x? R+

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10 May 2008 16:47:47 IST

Subject: Re:RD SHARMA..find the condition such that x3+ax2+bx+c has a local maxima at certain x? R+

joyfrancis (1504)

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Here is the graph for

$y = {x}^{3} - 2{x}^{2} - 5x+5$

this clearly satisfies the condition derived by gaurav of b<0, but here the maxima is at R- so gaurav's answer is incorrect

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this reply: 4 points (with 0 Olaaa!! Perrrfect answer.

in 2 votes ) [?]

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