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please answer all these question (a) (b) dy_ Solve the differential equation 3 _ 4xy2 (5 marks) Solve the initial-value problem (43! cosy) 3: 3x2

please answer all these question
(a) (b) dy_ Solve the differential equation 3 _ 4xy2 (5 marks) Solve the initial-value problem (43! cosy) 3: 3x2 = 0, y (D) = (5 marks) At time t = 0, a tank contains 4kg of salt dissolved in 100 t of water. Suppose that brine containing 2 kg of salt per litre of brine is allowed to enter the tank at a rate of Slimin and that the mixed solution is drained fro the tank at the same rate. Find the amount of salt in the tank after 10 minutes. (10 marks]

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