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JEE Mains · Maths · STD 11 - 10.2 parabola,ellipse,hyperbola

यदि रेखा \(y = mx +7 \sqrt{3}\), अतिपरवलय \(\frac{x^{2}}{24}-\frac{y^{2}}{18}=1\) का अभिलंब है, तो \(m\) का एक मान है :

  1. A \(\frac{2}{{\sqrt 5 }}\)
  2. B \(\frac{{\sqrt 5 }}{2}\)
  3. C \(\frac{{\sqrt {15} }}{2}\)
  4. D \(\frac{3}{{\sqrt 5 }}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\frac{2}{{\sqrt 5 }}\)

Step-by-step Solution

Detailed explanation

\(\frac{{{x^2}}}{{24}} - \frac{{{y^2}}}{{18}} = 1\,\,\,\,\, \Rightarrow a\, = \sqrt {24} :b\, = \sqrt {18} \) Paramentric normal: \(\sqrt {24} \cos \theta .x + \sqrt {18} .y\cot \theta = 42\) At \(x = 0;y = \frac{{42}}{{\sqrt {18} }}\tan \theta = 7\sqrt 3 \) (from given…
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