SOLUTION: an ellipse's foci (0,±1) and vertices (0,±2). what is the eccentricity of the ellipse?

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Question 879354: an ellipse's foci (0,±1) and vertices (0,±2). what is the eccentricity of the ellipse?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
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Your data indicate c=1 and a=2.
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