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Un article trouvé pour ce sujet.
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Rate of change of distance between the clock hands |
2007-06-05 |
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Jonathan pose la question :
A certain Clock has a minute hand with a length of 4 inches long and an hour hand with a length of 3 inches long. How fast is the distance between tips of these hands changing at 9:00?
Stephen La Rocque lui répond. |
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