平面凸四邊形、凸五邊形頂角的合分角正弦值、餘弦值關係方程式(上)

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ntnulib_ja_K0201_0427_047.pdf (400.57 KB)

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2020-04-??

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國立臺灣師範大學科學教育中心
Science Education Center,National Normal University

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http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/109036

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科學教育月刊

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