🏆【2018教育部教學實踐研究計畫】(4K) 2017警大:Solve x²y’’ + 5xy’ – 21y = 0, y(2) = 1, y’(2) = 0

🏆【教學影片】(4K) 2017警大:Solve x²y’’ + 5xy’ – 21y = 0, y(2) = 1, y’(2) = 0

🏆【解題講義】https://s.chu.edu.tw/R.aspx?rd=kuO1FQ