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高一数学(人教A版)余弦定理的推导

视频地址：https://video.cache.bdschool.cn/vd/0b1e5194a1a79fff7b34f1e06d6e6f65.mp4
附件：0520高一数学（人教A版）余弦定理的推导-1教案.docx
附件：0520高一数学（人教A版）余弦定理的推导-2ppt课件.pptx
附件：0520高一数学（人教A版）余弦定理的推导-3学习任务单.docx

17 views Jul 15, 2021

高一数学（人教A版）-立体几何初步单元复习（第三课时）高一数学(人教A版)向量数量积的运算

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