solving xy'=y using a power series
66457
Series expansion of $xy'=y$
101499
Prove $e^{x+y}=e^{x}e^{y}$ by using Exponential Series
102175
$Z=XY$, $E_Z[Z]$, $E_{X,Y}[XY]$
25730
Solve $u_x + u_y + u = e^{x+2y}$
144539
Power series $ f(g(z)) = z $
124073
solving for one solution to a system of polynomials
21970
Convergence of the Power Series for $xu''+\sin(x)u=0$
60456
Find the power series of $f(x)=\frac{1}{x^2+x+1}$
16948
Need help with a proof that if $xy=0$ then $x=0$ or $y=0$
87304
Solving for $x$ : $a^x+b^x=c$
94585
Solving for a variable that's an exponent
120981
$(x-x_0)^0$ in power series
69172
$y'=$ ${-x+\sqrt{(x^2+4y)}}\over 2$ , $y(2)=-1$
23112
Solving an equation with rational expressions (step by step)
74664
A question regarding power series expansion of an entire function
154829
How to solve $y'' + y = y^{-3}$
10753
Natural number solutions to $\frac{xy}{x+y}=n$ (equivalent to $\frac 1x+\frac 1y=\frac 1n$)