If the ellipse (x^2)/(a^2)+(y^2)/(b^2)=1...

If the ellipse `(x^2)/(a^2)+(y^2)/(b^2)=1` is inscribed in a rectangle whose length to breadth ratio is `2:1` , then the area of the rectangle is `4.(a^2+b^2)/7` (b) `4.(a^2+b^2)/3` `12.(a^2+b^2)/5` (d) `8.(a^2+b^2)/5`

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