请教一题

<m:math display=\'block\'>
<m:semantics>
  <m:mrow>
   <m:mstyle displaystyle=\'true\'>
    <m:munderover>
     <m:mo>∏</m:mo>
     <m:mrow>
      <m:mi>n</m:mi><m:mo>=</m:mo><m:mn>1</m:mn>
     </m:mrow>
     <m:mi>∞</m:mi>
    </m:munderover>
    <m:mrow>
     <m:mrow><m:mo>(</m:mo>
      <m:mrow>
       <m:mn>1</m:mn><m:mo>−</m:mo><m:mfrac>
        <m:mn>1</m:mn>
        <m:mrow>
         <m:msup>
          <m:mn>2</m:mn>
          <m:mi>n</m:mi>
         </m:msup>
         
        </m:mrow>
       </m:mfrac>
      
      </m:mrow>
     <m:mo>)</m:mo></m:mrow>
    </m:mrow>
   </m:mstyle>
  </m:mrow>
<m:annotation encoding=\'MathType-MTEF\'>
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</m:semantics>
</m:math>
疏食而遨游 泛若不系之舟
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Originally posted by ghyhj at 2005-2-4 12:16 AM:
despair.gi楼主可否将其编辑或再发一遍biggrin.gi

sorry!
不能显示despair.gi
题目是,求下列数列的极限:(1-1/2)*(1-1/4)*(1-1/8)……*(1-/2^n)
疏食而遨游 泛若不系之舟

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