比较大小(平方法比较二次根式大小)
来源:学生作业帮 编辑:搜搜考试网作业帮 分类:数学作业 时间:2024/07/30 23:12:41
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![比较大小(平方法比较二次根式大小)](/uploads/image/z/6109002-18-2.jpg?t=%E6%AF%94%E8%BE%83%E5%A4%A7%E5%B0%8F%28%E5%B9%B3%E6%96%B9%E6%B3%95%E6%AF%94%E8%BE%83%E4%BA%8C%E6%AC%A1%E6%A0%B9%E5%BC%8F%E5%A4%A7%E5%B0%8F%29)
解题思路: 当两个式子中的两个根式被开方数的和相等,可考虑把两个式子分别平方后再比较乘积项,用乘积的大小确定根式值的大小.
解题过程:
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最终答案:略
解题过程:
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最终答案:略