請教！！！！怎么用英語表示根號！

熱心網(wǎng)友

如:square root of l7=17 的平方根cube root of 17= 17的立方根

熱心網(wǎng)友

跟號120The square[second]root of one hundred and seventy3次跟號下309The cube [third]root of three hundred and nine

熱心網(wǎng)友

Radical

熱心網(wǎng)友

Sqrt

熱心網(wǎng)友

radical sign

熱心網(wǎng)友

sqrt(x)