Question: 5. Solve (x+ y)dy = (x y)dx. A. x2 + y? = c . 22 + 2xy + y? = c C. x2 2xy

5. Solve (x+ y)dy = (x y)dx. A. x2 + y? =

5. Solve (x+ y)dy = (x y)dx. A. x2 + y? = c . 22 + 2xy + y? = c C. x2 2xy y = c D. 2? - 2y + ? %3D . 6. Solve the system of differential equations via the matrix method. x' = 6x + 5y y = x + 2y. (:) A. x(t) = c1 et + C2 e7t 1 . 2(t) 1 et + C2 ert 1 1 C. x(t) = c1 5 e-t + c2 -7t e 1 1 D. x(t) : e7t. = C1 C2 1 1

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