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Question Number 66226 by Rio Michael last updated on 11/Aug/19

$$theequationf\left(x\right)=0hasrealrootsin$$$$theinterval(a,b)if$$$$A-f\left(a\right)>0andf\left(b\right)>0$$$$Bf\left(a\right)<0andf\left(b\right)<0$$$$C-f\left(a\right)>0andf\left(b\right)=0$$$$Df\left(a\right)>0andf\left(b\right)<0$$

Commented by Prithwish sen last updated on 11/Aug/19

$$\mathrm{A}\mathrm{and}\mathrm{D}$$

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