2. The rate of change of Keppra in milligrams per liter per hour is modeled by 75e-3(3.33-t) where t is in hours. ● Draw a graph of the rate of change and indicate the region whose area is given by 75e-(3.33-t)dt. To use integration by parts, you must choose u and du. Do so. = du Now, write down uv-vdu. Explain what you would do from here to get the area and what that answer represents.

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