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<p>#1 help me(數學題)<br /><small>1.若x和y是正整數,求x(y+2007)與xy之間的正整數數目。<br />
    If x and y are positive integers, find the number of integers between x(y+2007) and xy?  <br />
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唔識計<br />
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[[i] 本帖最後由 Justice 於 2009-11-10 22:36 編輯 [/i]]</small><br />
11/10 22:15<br />
Justice<br /></p>
<p>#2 <br /><small>其實條數f幾學- -</small><br />
11/10 22:20<br />
ZGF-2107<br /></p>
<p>#3 回復 #2 ZGF-2107 的帖子<br /><small>我係中3,不過唔洗學</small><br />
11/10 22:23<br />
Justice<br /></p>
<p>#4 <br /><small>..</small><br />
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