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
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
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
TN XII Math
>>
Objective type Questions and Answers
One of the foci of the rectangular hyperbola $xy=18$ is
\[\begin{array}{1 1}(1)(6 , 6)&(2)(3 , 3)\\(3)(4 , 4)&(4)(5 , 5)\end {array}\]
tnstate
class12
bookproblem
p277
objective
q118
modelpaper
mar-2006
Share
asked
May 14, 2013
by
poojasapani_1
edited
May 16, 2014
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
The equation of the rectangular hyperbola is $xy=18$
$c^2=18 => \large\frac{a^2}{2}$$=18$
$a^2=36 => a= 6$
=>$(6 , 6)$
Hence 1 is the correct answer.
answered
May 16, 2014
by
meena.p
Please
log in
or
register
to add a comment.
Related questions
The length of the latus rectum of the rectangular hyperbola $xy=32$ is
tnstate
class12
bookproblem
p277
objective
q119
modelpaper
mar-2008
mar-2010
asked
May 14, 2013
by
poojasapani_1
1
answer
The normal to the rectangular hyperbola $xy=9$ at$(6,\frac{3}{2})$ meets the curve again at
tnstate
class12
bookproblem
p277
objective
q121
asked
May 14, 2013
by
poojasapani_1
1
answer
The area of the triangle formed by the tangent at any point on the rectangular hyperbola $xy=72$ and its asymptotes is
tnstate
class12
bookproblem
p277
objective
q120
asked
May 14, 2013
by
poojasapani_1
1
answer
The directrices of the hyperbola $x^{2}-4(y-3)^{2}=16$ are
tnstate
class12
bookproblem
p275
objective
q107
modelpaper
mar-2006
jun-2009
asked
May 14, 2013
by
poojasapani_1
1
answer
The co-ordinate of the vertices of the rectangular hyperbola $xy=16$ are
tnstate
class12
bookproblem
p276
objective
q117
modelpaper
mar-2007
asked
May 14, 2013
by
poojasapani_1
1
answer
In the multiplicative group of cube root of unity, the order of $w^{2}$ is
tnstate
class12
bookproblem
p240
objective
q118
modelpaper
jun-2007
oct-2008
asked
May 24, 2013
by
poojasapani_1
1
answer
The asymptotes of the rectangular hyperbola $xy=c^{2} $ are
tnstate
class12
bookproblem
p276
objective
q116
asked
May 14, 2013
by
poojasapani_1
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
...