(a) Transform (3) to be a linear equation.
(b) Find the solution of the above initiat-value problem.
5.4 Given that the differential equation \( M(x, y) d x+N(x, y) d y=0 \) is homogeneous.
Show the equation is atways put in the form \( \frac{d y}{d x}=F\left(\frac{y}{x}\right) \), where \( F \) is a function of \( \frac{y}{x} \).