The latus rectum of the hyperbola \[9{{x}^{2}}-16{{y}^{2}}+72x-32y-16=0\] is [Pb. CET 2004]

The latus rectum of the hyperbola \[9{{x}^{2}}-16{{y}^{2}}+72x-32y-16=

1.	The latus rectum of the hyperbola \[9{{x}^{2}}-16{{y}^{2}}+72x-32y-16=0\] is [Pb. CET 2004]
A.	\[\frac{9}{2}\]
B.	\[-\frac{9}{2}\]
C.	\[\frac{32}{3}\]
D.	\[-\frac{32}{3}\]
Answer» B. \[-\frac{9}{2}\]

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The latus rectum of the hyperbola \[9{{x}^{2}}-16{{y}^{2}}+72x-32y-16=0\] is [Pb. CET 2004]

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