A second order ODE has the following solution y(x) = e* (C, cos (3x) + C2 sin (3x) ) What's the ODE itself? 5 a. y-4y - 13y = 0 ) b. y - 4y + 13y = 0 ) c. y+ 4y + 13y = 0 С. 5 d. y + 4y - 13y = 0 %3D е. others

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