After you verified that the equation M (x, y) dx + N (x, y) dy = 0 is exact, how do you start solving it? O Perform the substitution y = ux and dy = udx + xdu. O Integrate M (x, y) with respect to Y, while holding x constant. O Integrate M (x, y) with respect to x, while holding y constant. O Find the integrating factor.

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Differential Equations

Have you ever observed the movement of the satellites and rockets or how the planets go around the sun in their orbits? How will you determine their motion? Definitely they follow some scientific laws and these kinds of problems are framed as differential equations.