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Cubic equation doubt

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Halflife
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Cubic equation doubt

Halflife
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Seecha
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Re: Cubic equation doubt

Seecha
accrd. to me (c) is the answer ...
whenevr such ques. first i find how many real roots that is by " descrates rule of real roots" (google it)
it also say how many positive and negative real roots . ( there may be some ques. whch don't follow this rule)  
and also from intermitiate value theorom (ivt) and accrd to this  there must lie odd no. real roots in 0 to 1 .. so yes option (c)
Halflife
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