If the amount of capital that a company has at time t is fstd, then the derivative
Chapter 8, Problem 13(choose chapter or problem)
If the amount of capital that a company has at time t is fstd, then the derivative, f9std, is called the net investment flow. Suppose that the net investment flow is st million dollars per year (where t is measured in years). Find the increase in capital (the capital formation) from the fourth year to the eighth year.
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