MCQ
$ax^2+ bx + c > 0$ is, $............?$
- Adouble inequality
- ✓quadratic inequality
- Cnumerical inequality
- Dlinear inequality
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$2\left(a_1+a_2+\ldots .+a_n\right)=b_1+b_2+\ldots . .+b_n$
holds for some positive integer $n$, is. . . . . . .