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Mathematics 21 Online
OpenStudy (anonymous):

I will give medal : Find the equation of the ellipse given the eccentricity 1/2 , distance between directrices 24.

OpenStudy (cp9454):

distance between directrix of an ellipse is 2a/e. we know the eccentricity, just substitute the value.

OpenStudy (cp9454):

|dw:1430059397133:dw|

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