GMAT数学辅导：算术知识点全解析(数的幂和根)
<p> <span word="GMAT">GMAT</span>数学辅导：算术知识点全解析</p><p> 七.数的幂和根：<span word="powers">powers</span> <span word="and">and</span> <span word="roots">roots</span> <span word="of">of</span> <span word="numbers">numbers</span></p><p> <span word="x">x</span> <span word="n">n</span>意味着<span word="the">the</span> <span word="nth">nth</span> <span word="power">power</span> <span word="of">of</span> <span word="x">x</span>。例如：64 <span word="is">is</span> <span word="the">the</span> 6<span word="th">th</span> <span word="power">power</span> <span word="of">of</span> 2。2 <span word="is">is</span> <span word="a">a</span> 6<span word="th">th</span> <span word="root">root</span> <span word="of">of</span> 64。</p><p> 立方根是指<span word="cube">cube</span> <span word="root">root</span>。</p><p> </p>
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