Answer

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.

Updated On: 11-5-2021

Apne doubts clear karein ab Whatsapp par bhi. Try it now.

CLICK HERE

Loading DoubtNut Solution for you

Watch 1000+ concepts & tricky questions explained!

1.3 K+

64

Text Solution

pair of straight line `AA lambda in R`straight line for exactly one value of `lambda`parabola `AA lambda in R -{0}`ellipse for three values of `lambda`

Answer :

B::CSolution :

`S = 0 rArr x^(2) +2xy +y^(2) -4x -4y +4 = 4lambda (y-x)` <br> `rArr (x+y-2)^(2) = 4 lambda (y-x)` <br> If `lambda =0`, it represents pair of straight line otherwise parabola.