Quadratic Roots Interval (Jee Mains) | ExamDuo
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Mole Concept & Percentage Composition
Medium
Quadratic Roots Interval
Let the set of all values of p ∈
, for which both the roots of the equation x
2
– (p + 2)x + (2p + 9)= 0 are negative real numbers, be the interval (α, β]. Then β – 2α is equal to
SELECT ONE OPTION
A
0
B
9
C
5
D
20
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