logo

Ask Questions, Get Answers

X
 

The length of the latus rectum of the rectangular hyperbola $xy=32$ is

\[\begin{array}{1 1}(1)8\sqrt{2}&(2)32\\(3)8&(4)16\end{array}\]

1 Answer

The equation of the hyperbola is $xy=32$
$c^2=32$
$\large\frac{a^2}{2}=$$ 32$
$a^2=64$
$a=8$
$2a= 2 \times 8=16$
Hence 4 is the correct answer.
answered May 16, 2014 by meena.p
 
...