9231 P22 - Nov 2023 - Q4 - 9 marks
5962
Find the solution of the differential equation
\(\frac{\mathrm{d} y}{\mathrm{~d} x}+3 y=\sin x\)
for which \(y=1\) when \(x=0\). Give your answer in the form \(y=\mathrm{f}(x)\).
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