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October 28th, 2013, 01:22 PM   #1
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Foreign exchange reserve

The foreign exchange reserve of some country at each time t is given by the function

F(t)=t^2+ t +50

(a) Compute f(t), the rate of change of the reserve.
(b) Compute the are between the graph of f and the horizontal axis in the interval [1; 10].
(c) Determine the periods with positive net ?ow and negative net ?ow. Determine the global net
?ow during the period [1; 10]
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