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OpenStudy (anonymous):
Write an equation of the ellipse with foci at (0, ±11) and vertices at (0, ±12). My answer \[\frac{x^2}{23}+\frac{y^2}{144}=1\] please check :)
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OpenStudy (anonymous):
you can always check in wolfram alpha :)
OpenStudy (anonymous):
https://www.wolframalpha.com/input/?i=%5Cfrac%7Bx%5E2%7D%7B23%7D%2B%5Cfrac%7By%5E2%7D%7B144%7D%3D1
OpenStudy (anonymous):
Cool!
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