The Gateway to Computer Science Excellence
First time here? Checkout the FAQ!
x
0 votes
206 views

The value of $k$ for which $4x^2 – 8xy + ky^2 = 0$ does not represent a pair of straight lines (both passing through the origin) is:

  1. 0
  2. 2
  3. 9
  4. 3
in Non GATE by Veteran (52.1k points) | 206 views

2 Answers

0 votes
d) 3
by Loyal (5.2k points)
0
Please explain how
0 votes
ans is C.

for k=9, it will become an expression for a circle.
by Loyal (8.1k points)
0
Please explain how

Related questions

+1 vote
0 answers
2
asked Oct 8, 2014 in Non GATE by Kathleen Veteran (52.1k points) | 267 views
0 votes
0 answers
3
asked Oct 8, 2014 in Non GATE by Kathleen Veteran (52.1k points) | 126 views
0 votes
0 answers
4
asked Oct 8, 2014 in Non GATE by Kathleen Veteran (52.1k points) | 200 views
0 votes
0 answers
7
asked Oct 8, 2014 in CO and Architecture by Kathleen Veteran (52.1k points) | 218 views
Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true
49,839 questions
54,799 answers
189,488 comments
80,674 users