![](https://i.imgur.com/0qiQvla.jpg)
[問題] RC電路問題,求高手幫忙
![](https://i.imgur.com/0qiQvla.jpg)
第六題,下面是我算的答案,可是怪怪的平均值算出來是負的。
http://i.imgur.com/eI1GR4R.jpg
![](https://i.imgur.com/eI1GR4R.jpg)
請求高手幫忙。
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