If ax + b x c for all positive x, where a, b, c > 0, then
Mathematics · JEE Main · NTA Exams — Limit, Continuity and Differentiability
If ax + \(\frac{\mathrm{b}}{\mathrm{x}} \geq\) c for all positive x, where a, b, c > 0, then
- ab < \(\frac{\mathrm{c}^{2}}{4}\)
- ab ≥ \(\frac{\mathrm{c}^{2}}{4}\)
- ab ≥ \(\frac{c}{4}\)
- none of these
Answer
(B) ab ≥ c ^ 2 4
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