Question: E nvironmental pollutants In Section 10.3 a model for the transport of environmental pollutants between three lakes is analyzed. It is shown that, for certain

E nvironmental pollutants In Section 10.3 a model for the transport of environmental pollutants between three lakes is analyzed. It is shown that, for certain parameter values, the concentration of pollutant in one of the lakes as a function of time is given by an equation of the form xstd − k 2 ke2at cos bt The environmental impact of the pollutant is a function of both its concentration and the duration of time that it persists. The integral of the concentration over time is a summary measure of this impact. Calculate this measure of impact over the first unit of time.

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