File:正弦二倍角公式證明圖.jpg
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中文(臺灣):正弦二倍角公式證明圖 |
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Date | ||||
Source | 張景中 (2007) 數學家的眼光, 中國少年兒童新聞出版總社, pp. 23 ISBN: 978-7-5007-8657-3. | |||
Author | 張景中 | |||
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[edit]Date/Time | Dimensions | User | Comment |
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2017-04-08 17:47 | 1938×1364× (149194 bytes) | Wcam | threshold |
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current | 01:41, 23 April 2017 | ![]() | 1,938 × 1,364 (146 KB) | Taiwania Justo (talk | contribs) | Transferred from zh.wikipedia |
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