If a relation exists among variables x,y,z then z may be expressed as a function of x and y as, dz=Mdx+Ndy .

Question

Quizplus · Accepted Answer

The given equation is a differential equation that expresses the relationship between the variables x, y, and z. It states that the change in z (dz) can be expressed as a function of the changes in x (dx) and y (dy), where M and N are functions of x and y. This means that z can be expressed as a function of x and y, which is the definition of a function.

If a Relation Exists Among Variables X,y,z Then Z May