🏆【2018教育部教學實踐研究計畫】(4K) 2014中興:Solve x²y’’ + axy’ + by = x ln x

🏆【教學影片】(4K) 2014中興:Solve x²y’’ + axy’ + by = x ln x

🏆【解題講義】https://s.chu.edu.tw/R.aspx?rd=8cbRoZ