The following PDE u + u = 0 O a. Homogeneous (on the x-y plane) Ob. Nonhomogeneous on the x-y plane, but it is homogeneous on the first quadrant. OC. Nonhomogeneous (on the x-y plane) od. Cannot be said to be homogeneous or not, because it is not a linear PDE

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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.