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Q3) A rectangular sheet of cardboard measures 15 cm x 7 cm and is used to make an open- top box, by cutting a small

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Q3) A rectangular sheet of cardboard measures 15 cm x 7 cm and is used to make an open- top box, by cutting a small square from each corner and folding up the sides. What length should be cut so that the box has a maximum volume? Find the maximum volume of the box obtained. 15-2x 7-2x a) Find x using differentiation S/NYS b) Find the maximum volume of the box S/NYS

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