Please list the steps and the calculation formula used in detail.
6. Suppose that the fish population P(t) in a lake is attacked by disease at time t = 0, with the result that dP dt =-3√P thereafter where t is measured in weeks. Initially there are P900 fish in the lake. How long will it take for all of the fish to die? (8 marks)
Please list the steps and the calculation formula used in detail.
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