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[Post New]10 Jul 2008 16:16:27 IST
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man111 (47)

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(1) find the total no. of real roots of the equation





x6-8x5+7x4+49x3-31x2-57x+44=0
    
[Post New]10 Jul 2008 16:20:47 IST
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sarvesh.iit_m (48)

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use descartes rule of signs.....
i think all six roots are real....
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[Post New]10 Jul 2008 16:22:44 IST
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vikkycoolboy (238)

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@sarvesh ryt!!


 


differentiating it 5 times still gives a reall root the 6th tym!


 


i guess the answer is 6
B.TECH ECE
NIT ALLAHABAD
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[Post New]10 Jul 2008 16:23:52 IST
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man111 (47)

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no real roots..........
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