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2乘根号2如何计算
更新时间: 2020-10-29 00:00:00  

先把2化成根号4,再相乘,根号2乘根号4,答案是根号8。根号是一个数学符号。根号是用来表示对一个数或一个代数式进行开方运算的符号。若a^n=b,那么a是b开n次方的n次方根或a是b的1/n次方。开n次方手写体和印刷体用√ ̄表示,被开方的数或代数式写在符号左方v形部分的右边和符号上方一横部分的下方共同包围的区域中,而且不能出界。

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