1. 估计一个数的算术平方根在哪两个整数之间; 2. 根号2和根号3的近似值。 值域的求法秒杀根号下的二次函数 根号秒杀公式 高中数学一招秒杀根号 一招秒杀根号型值域 高中数学20秒秒杀根号型值域 高中数学一招秒杀根号型值域 根号相加的最值问题秒杀技巧 高一数学秒杀根号 高中数学秒杀根号技巧 根号的秒杀公式 秒杀名师 初中数学根号几的估算
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