ExamBro
ExamBro
enEnglishhiहिन्दीguગુજરાતી
JEE Mains · Maths · STD 11 - 9. straight line

રેખાઓ \(x+2 y+7=0\) અને \(2 x-y+8=0\) થી હંમેશા સમાન અંતરે રહે તે રીતે ગતિ કરતા બિંદુ \(P\) નો બિંદુપથ \(x^2-y^2+2 h x y+2 g x+2 f y+c=0\) છે. તો \(g+c+h-f\) નું મૂલ્ય ........... છે.

  1. A \(14\)
  2. B \(6\)
  3. C \(8\)
  4. D \(29\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(14\)

Step-by-step Solution

Detailed explanation

Cocus of point \(\mathrm{P}(\mathrm{x}, \mathrm{y})\) whose distance from Gives \(\mathrm{X}+2 \mathrm{y}+7=0 \& 2 \mathrm{x}-\mathrm{y}+8=0\) are equal is \(\frac{x+2 y+7}{\sqrt{5}}= \pm \frac{2 x-y+8}{\sqrt{5}}\) \((x+2 y+7)^2-(2 x-y+8)^2=0\) Combined equation of lines…
Same subject
Explore more questions on app
From JEE Mains
Explore more questions on app