Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
EAMCET
>>
Mathematics
For an ellipse with eccentricity $\large\frac{1}{2}$ the center is at the orgin. If one directrix is $x=4$, then the equation of the ellipse is
\[\begin {array} {1 1} (1)\;3x^2+4y^2=1 & \quad (2)\;3x^2+4y^2=12 \\ (3)\;4x^2+3y^2=1 & \quad (4)\;4x^2+3y^2=12 \end {array}\]
jeemain
eamcet
math
2008
q57
Share
asked
Oct 17, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
$ (2)\;3x^2+4y^2=12$
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
If $x=9$ is a chord of contact of the hyperbola $x^2-y^2=9,$ then the equation of the tangent at one of the points of contact is
jeemain
eamcet
math
2013
q57
asked
Sep 16, 2013
by
meena.p
1
answer
A current carrying circular loop of radius R is placed in the x-y plane with center at the orgin . Half of the loop with $ x >0$ is noe bent. So that it now lies in the $y-z$ plane .
cbse
class12
physics
ch-4
sec-b
q57
ncert
medium
asked
Jul 29, 2015
by
meena.p
1
answer
The eccentricity of an ellipse , with its centre at origin is $\large\frac{1}{2}$, If one of the directrices is $x=4$ then the equation of the ellipse is
jeemain
math
class11
coordinate-geometry-conic-sections
ellipse
ch11
difficult
asked
Apr 10, 2014
by
meena.p
1
answer
The sides of the rectangle of greatest area that can be inscribed in the ellipse $x^2+4y^2=64$ are:
jeemain
eamcet
math
2006
q57
asked
Nov 6, 2013
by
meena.p
1
answer
The value of k , if (1,2),(k,1) are conjugate points with respect to the ellipse $2x^2+3y^2=6$ is
jeemain
eamcet
math
2007
q57
asked
Oct 25, 2013
by
meena.p
1
answer
Let $A$ and $B$ be events in a sample spaces $S$ such that $P(A)=0.5, P(B)=0.4$ and $P(A \cup B)=0.6$. observe the following lists:
jeemain
eamcet
math
2011
q57
asked
Sep 23, 2013
by
meena.p
1
answer
A pair of perpendicular straight lines passes through the origin and also through the point of intersection of the curve $x^2+y^2=4$ with $x+y=a$. The set containing the value of 'a' is
jeemain
eamcet
math
2008
q50
asked
Oct 17, 2013
by
meena.p
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...
close