2 SECTION A: MULTIPLE CHOICE QUESTIONS [40] dy 1. The complementary equation to +2 + 4y = 5e-3t is: dt d'y 2. The particular solution trial function of + + 4y = 5e³t (before substitution in the differential equation) is: 3. The complementary function (YCF) when solving the differential equation n'y 5cos(2t), where n is a constant, is: dt²

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