f. Assume that the population of a certain city increases at a rate proportional to the number of its inhabitants at any time. If the population doubles in 40 years, in how many years will it triple?

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A: Topic:- exponential function

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A: image is attched

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.