Please answer all a) b)

Question 1 A drug is administered by intravenous injection at the rate of A(t) = 1 + sint and is eliminated at a rate y(t) where y(t) is the plasma concentration at time t. The plasma concentration satisfies the equation dy dt = 1 + sint - y a) Determine the general solution to this equation b) Establish the plasma concentration at time t if the drug is initially absent from the body y(0) = 0