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The sides of the rectangle of the greate...

The sides of the rectangle of the greatest area, that can be inscribed in the ellipse `x^2 + 2y^2 = 8,` are given by

A

`4 sqrt2, 4`

B

`4, 2 sqrt2`

C

`2, sqrt2`

D

`2 sqrt2, 2`

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The correct Answer is:
B
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