Find the distance between the foci of the ellipse \[x^2 + 4y^2 = 400.\]
Question:
Find the distance between the foci of the ellipse \[x^2 + 4y^2 = 400.\]
Answer:
Let's think step by step.

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20\sqrt3
Find the distance between the foci of the ellipse \[x^2 + 4y^2 = 400.\]
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