||'''Book'''|| Advanced Engineering Mathematics || ||'''Author'''|| Erwin Kreyszig || ||'''Edition'''|| 8th Edition || {{{ var ('y,b,c') y=log(x) b=x*x*diff(y,x,2)+3*y-3*x*diff(y,x) c=3*log(x)-4 bool(b == c) }}} * '''Solution by''': * , , * , ,