作者littleyinyo (I AM YIN)
站内Grad-ProbAsk
标题[问题] 94暨南通讯
时间Thu May 14 11:08:07 2009
Consider tje differential equation xy'-4x^2y+2ylny=0
(a)Show that the substitution v=lny transforms the differential equation into
a linear differential equation.
(b)Find y(x)=?
(c)Find an integrating factor ρ(x,y) so that the multiplication of the
differential equation by ρ(x,y) yields an exact differential equation.
(c)问题看得不是很懂，有谁可以帮帮忙的吗?谢谢^^
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