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Let x and y be the length and bredth of ...

Let x and y be the length and bredth of the rectangle ABCD in a circle having radius r. Let `angleCAB=theta` (Ref. Figure). If `triangle` represent area of the rectangle and r is a constant.
Show that the rectangle of maximum area that can be inscribed in a circle of radius r is a square of side `sqrt2r`.

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MAXIMUM PUBLICATION-APPLICATION OF DERIVATIVES-EXAMPLE
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  2. Let x and y be the length and bredth of the rectangle ABCD in a circle...

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  6. The second derivative of the equation of a curve is given by the equat...

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  9. The Given figure represents a cylinder inscribed in a sphere. Find ...

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