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A patient is continually receiving a drug. If the drug is eliminated from the body over...

A patient is continually receiving a drug. If the drug is eliminated from the body over time so that the fraction that remains after t hours is e−0.1t, at what constant rate in terms of the initial drug level P0 should the drug be administered to maintain a steady level of the drug in the bloodstream? I keep getting ln3 which isnt right help

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