The least value of a ∈ R for which 4 a x^ 2 + 1 x 1, for all x > 0, is
Mathematics · JEE Advanced · NTA Exams — Complex Numbers and Quadratic Equations
The least value of a ∈ R for which \(4 a x^{2}+\frac{1}{x} \geq 1,\) for all
x > 0, is
x > 0, is
- 1/64
- 1/32
- 1/27
- 1/25
Answer
(C) 1/27
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