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NDA 2011
Exam
NDA
Year
2011
Subject
Mathematics
Chapter
Quadratic Equation

NDA 2011 · Mathematics · Quadratic Equation

If the roots of the equation x^2-4 x- _3 N=0 are real, then what is...

If the roots of the equation x2−4x−log⁡3N=0x^2-4 x-\log _3 \mathrm{ N}=0 are real, then what is the minimum value of N ?

Options

  1. A1/2561 / 256
  2. B1/271 / 27
  3. C1/641 / 64
  4. D1/811 / 81

Correct answer

D. 1/811 / 81

Step-by-step solution

The correct answer is option D
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