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目录余弦定理 余弦定理 对于任意一个三角形: \[a^2 = b^2 + c^2 - 2bc * cosA \]任意一边的平方,等于另外两边的平方和,减去2倍这两边与它们夹角余弦值的乘积。 阅读全文
posted @ 2025-10-04 15:35
Alex039
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目录JT-JY6T4S1-1JT-JY6T4S1-2FT-(JY&VOAs) JT-JY6T4S1-1 Conference Certer Reservation Good morning. Hi, i am interested in the computing conference next m 阅读全文
posted @ 2025-10-04 10:52
Alex039
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