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A box , constructed from a rectangular m...

A box , constructed from a rectangular metal sheet , is 21 cm by 16 cm by cutting equal squares of sides x from the corners of the sheet and the turning up the projected portions . The value of x so that volume of the box is maximum is

A

1

B

2

C

3

D

4

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The correct Answer is:
C
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AAKASH SERIES-MAXIMA AND MINIMA -PRACTICE SHEET (EXERCISE -II) (LEVEL -I) (STRAIGHT OBJECTIVE TYPE QUESTIONS)
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  17. The longest distance of the point (a,0) from the curve 2x^(2)+y2-2x=0 ...

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  18. The minimum distance from the origin to a point on the curve x^(2//3) ...

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