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If 2x^(3)+ax^(2)+bx+4=0 (a, b are positi...

If `2x^(3)+ax^(2)+bx+4=0` (a, b are positive real numbers) has 3 real roots then prove that `a+b ge 12 sqrt(2)`.

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FIITJEE-QUADRATIC EQUATION & EXPRESSION -ASSIGNMENT PROBLEMS (SUBJECTIVE) Level - II
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