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प्रश्न
Choose the correct alternative:
The volume of a sphere is increasing in volume at the rate of 3π cm3/ sec. The rate of change of its radius when radius is `1/2` cm
विकल्प
3 cm/s
2 cm/s
1 cm/s
`1/2` cm/s
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उत्तर
3 cm/s
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