Determine a suitable form for Y(t) if the method of undetermined coefficients is to be used. y" + 16y = tcos 4t + (6t + 7)cos 4t O Y(t) = t(Aor + Ajt + A2)sin 4t + t(Bot + B1t + B2)cos 4t O Y(1) = 1(Aor + A1t + A2) sin 41 O Y(1) = (Aor + Ajt + A2 ) sin 4t + (Bor + Bit+ B2)cos 4t O Y(t) = t(Bor + Bit + B2)cos 4t %3D

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