Question
Fri November 23, 2012 By: Prasun Bairagi
 

to find out the distance between the directrices of the hyperbola x=8seca ,y=8tana

Expert Reply
Mon November 26, 2012
This is the parametric equation of a hyperbola.
a =8, b = 8 (rectangular hyperbola)
e = sqrt (2)
Distance between directrices = 2a/ e = 8 sqrt (2)
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