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If distance between the foci of an ellip...

If distance between the foci of an ellipse is 6 and distance between its directrices is 12, then length of its latus rectum is : (A)4 (B)`3sqrt2` (C)9 (D)`2sqrt2`

A

`3sqrt(2)`

B

`sqrt(3)`

C

`2sqrt(3)`

D

`(3)/(sqrt(2))`

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