In an ellipse, its foci and the ends of its major axis are equally spaced. If the length of its ...

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In an ellipse, its foci and the ends of its major axis are equally spaced. If the length of its semi-minor axis is \( 2 \sqrt{2} \), then the length of its semi-major axis is
(a) 4
(b) \( 2 \sqrt{3} \)
(c) \( \sqrt{10} \)
(d) 3
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