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The sum of the perimeter of a circle and...

The sum of the perimeter of a circle and square is k, where k is some constant. Prove that the sum of their areas is least when the side of square is double the radius of the circle.

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NCERT TELUGU-APPLICATION OF DERIVATIVES-EXERCISE 6.6
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  13. Show that the height of the cylinder of maximum volume that can be ins...

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  19. The equation of the normal to the curve x^(2)=4y at (1,2) is

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