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【320568】【详解】5年级第19讲_分数裂项

时间:2025-01-08 18:26:40 作者: 字数:1138字
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第十九讲 分数裂项


  1. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  2. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  3. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  4. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  5. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:(1)注意到每个分数的分母都比分子大2,原式可写成 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    2)注意到每个分数的分子都比分母的2倍多1,原式可写成 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  6. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    详解:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
     <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  1. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  2. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  3. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  4. 答案:(1 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a> ;(2 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:(1)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    2)原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  1. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  2. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  3. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>  <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  4. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

  5. 答案: <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>
    简答:原式 <a href="/tags/144/" title="分数" class="c1" target="_blank">分数</a>

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