[求助] 求低通滤波电路的截止频率和Q值的求解过程

file:///D:\Administrator\Documents\Tencent Files\1376639308\Image\C2C\7833E6D77A5A24B88232BDF89DC731B8.pngfile:///D:\Administrator\Documents\Tencent Files\1376639308\Image\C2C\7833E6D77A5A24B88232BDF89DC731B8.pngfile:///D:\Administrator\Documents\Tencent Files\1376639308\Image\C2C\7833E6D77A5A24B88232BDF89DC731B8.png求低通滤波电路的截止频率和Q值的求解过程

大概还记得一点，Q是静态工作点，截止频率就是带阻，不过要计算不看书，还真算不出来了，高手们来看看，算一下吧

谢谢