作者redwing119 (翼迷)
看板Grad-ProbAsk
标题[理工] [工数]-拉式
时间Sat Feb 6 21:53:59 2010
清大电机第九题
http://www.lib.nthu.edu.tw/library/department/ref/exam/eecs/ee/93/932601.pdf
f(t)=u(t-6)(t^2 -3)
=u(t-6)(t-6)(t+0.5)-5.5t
这样拆可吗?? 做出来跟答案不同
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1F：→ honestonly:不能y 02/06 21:57
2F：→ honestonly:f(t)=(t-6)^2 + 12(t-6) + 33 02/06 21:58
3F：→ honestonly: u(t-6) 02/06 21:58
4F：→ redwing119:了解了 02/06 21:59