mathematics求解二阶多参数常微分方程

Question

问题遇到的现象和发生背景

求解二阶多参数常微分方程

用代码块功能插入代码，请勿粘贴截图

DSolve[{y''[x] + (4ga(d + 2*(R - xtan[a[Degree]])))/(
Ecd*(R - xtan[a[Degree]])(d + R - xtan[a[Degree]]))y[x] ==
0, y[0] == 0, y'[L] == (4T)/(Ecpidd)}, y[x], x]

运行结果及报错内容

无法读出想要的通解

我的解答思路和尝试过的方法

用mathematica计算

我想要达到的结果

求出通解

Answer 1

下面文本复制粘贴运行没有报错。
DSolve[{y''[x] + (4ga(d + 2*(R - xtan[a[Degree]])))/(
Ecd*(R - xtan[a[Degree]])(d + R - xtan[a[Degree]]))y[x] ==
0, y[0] == 0, y'[L] == (4T)/(Ecpidd)}, y[x], x]