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

माना \(P_1\) परवलय का शीर्ष \((3,2)\) तथा नाभि \((4,4)\) है तथा रेखा \(x +2 y =6\) के सापेक्ष दर्पण इसका प्रतिबिम्ब \(P _2\) है, ता \(P _2\) की नियता \(x +2 y =\) होगी

  1. A \(10\)
  2. B \(15\)
  3. C \(8\)
  4. D \(12\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(10\)

Step-by-step Solution

Detailed explanation

\(P _{1}\) : Directorix : \(x+2 y=k\) \(x+2 y-k=0\) \(\left|\frac{3+4-K}{\sqrt{5}}\right|=\sqrt{5}\) \(|7-k|=5\) \(7-K=5 \quad 7-K=-5\) \(k=2 \quad k=12\) Accepted Rejected Passes through focus…
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