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Questions  

 Length of the latus rectum of the hyperbola xy=c2 is equal to 

a
2c
b
2c
c
22c
d
4c

detailed solution

Correct option is C

Length of latus rectum =2b2a For xy=c2,a=b and a22=c2 Required length =2⋅a2a=2a=22c

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