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Question

Find the eccentricity and length of the latus rectum of the hyperbola 16x29y2=144.

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Solution

Given equation of hyperbola-
16x29y2=144
x29y216=1
Here a=3,b=4
Now,
Eccentricity (e)=±1+b2a2=±1+169=±53
Length of latus rectum (l)=2b2a=2×163=329
Hence the eccentricity and length of latus rectum of the given hyperbola is ±53 and 329 respectively.

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