積分 | 用戶名 | 時間 | 理由 |
金錢 +10 | sincosyan | 2013-3-21 12:10 | 很給力! |
威望 +5 | sincosyan | 2013-3-21 12:10 | 很給力! |
金錢 +3 | zzw8550556 | 2012-7-5 16:08 | 我认为应该是f(x)-f(0)=f'(m)*x 其他都对. |
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