平面上给定点到给定直线的距离公式的两个新证明
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1001-8875|volume|18|64-64
ISSN: 1001-8875
Source: 数学教学通讯, Vol.volume, Iss.18, 2016-01, pp. : 64-64
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Abstract