Question: Show that the differential equation (x + 3x 3 sin y)dx + (x 4 cos y)dy = 0 is NOT exact, but multiplying this equation

Show that the differential equation (x + 3x³sin y)dx + (x⁴cos y)dy = 0 is NOT exact, but multiplying this equation by the factor (x^-1) yields an exact equation. Use this fact to solve the above differential equation.

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