2.125   ODE No. 125

xy(x)y(x)+xtan(y(x)x)=0

Mathematica : cpu = 0.138472 (sec), leaf count = 16

DSolve[x*Tan[y[x]/x] - y[x] + x*Derivative[1][y][x] == 0,y[x],x]
 
{{y(x)xsin1(ec1x)}}

Maple : cpu = 0.075 (sec), leaf count = 14

dsolve(x*diff(y(x),x)+x*tan(y(x)/x)-y(x) = 0,y(x))
 
y(x)=xarcsin(1xc1)