ExamBro
ExamBro
JEE Mains · Maths · STD 12 - 11. three dimension geometry

माना समतल \(\mathrm{x}+2 \mathrm{y}-\mathrm{z}=0\) में बिन्दु \(\mathrm{P}(2,-1,3)\) का प्रतिबिम्ब \(\mathrm{Q}\) है। तब बिन्दु \(\mathrm{Q}\) से समतल \(3 \mathrm{x}+2 \mathrm{y}+\mathrm{z}+29=0\) की दूरी है:

  1. A \(\frac{22 \sqrt{2}}{7}\)
  2. B \(\frac{24 \sqrt{2}}{7}\)
  3. C \(2 \sqrt{14}\)
  4. D \(3 \sqrt{14}\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(3 \sqrt{14}\)

Step-by-step Solution

Detailed explanation

eq. of line \(PM\) \(\frac{x-2}{1}=\frac{y+1}{2}=\frac{z-3}{-1}=\lambda\) any point on line \(=(\lambda+2,2 \lambda-1,-\lambda+3)\) for point ' \(m\) ' \((\lambda+2)+2(2 \lambda-1)-(3-\lambda)=0\) \(\lambda=\frac{1}{2}\) Point…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app