APM346-2022S > Chapter 1

chapter 1 Problem 4 (1)




divide both side by$uu_{x}$ and get


integrate with respect to y

$\ln{u}+f(x)=\ln{u_{x}}+g(x)$ enough to write one function of $x$

let g(x)-f(x)=n(x)

$u=u_{x}\times n(x)$



$u=N_{1}(x)\times m(y)$ "another $m(x)$"


Victor Ivrii:
Display formulae are surrounded by double dollars and no empty lines. Multiline formulae use special environments (google LaTeX gather align


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