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If a+b+2c=0, c!=0, then equation ax^2+bx...

If `a+b+2c=0, c!=0,` then equation `ax^2+bx+c=0` has (A) at least one root in (0,1) (B) at least one root in (0,2) (C) at least on root in (-1,1) (D) none of these

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