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| identifier | ISSN: 1001-8875 |
| ispartof | 数学教学通讯：中教版, 2003 (5S), p.46-47 |
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| source | 国家哲学社会科学学术期刊数据库 (National Social Sciences Database) |
| subjects | 不等式法 值域 函数 判别式法 单调性法 反函数法 变量代换法 配方法 |
| title | 求函数值域的几种常用方法 |
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