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倒數的認識
倒數的認識
更新时间:2024-12-28 02:00:22

  1、倒數(reciprocal / multiplicative inverse)是一個數學學科術語,拼音是dào shù。是指數學上設一個數x與其相乘的積為1的數,記為1/x,過程為“乘法逆”,除了0以外的數都存在倒數, 分子和分母相倒并且兩個乘積是1的數互為倒數,0沒有倒數。

  2、倒數的特點:一個正實數(1除外)加上它的倒數 一定大于2。

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