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Objective type Questions and Answers
The area of the triangle formed by the tangent at any point on the rectangular hyperbola $xy=72$ and its asymptotes is
\[\begin{array}{1 1}(1)36&(2)18\\(3)72&(4)144\end{array}\]
tnstate
class12
bookproblem
p277
objective
q120
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asked
May 14, 2013
by
poojasapani_1
edited
May 17, 2013
by
poojasapani_1
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1 Answer
The equation of the given rectangular hyperbola is $xy=72$
$c^2=72$
Required area $= 2c^2 =144$
Hence 4 is the correct answer
answered
May 16, 2014
by
meena.p
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