高一解三角形同向量结合的题目请大家务必给我完整一点的过程和思路~因为我不懂= = 【若您简略回答= =分就不能给了.】△ABC中,角A、B、C所对的边分别为a、b、c,且2sin^2 A+B/2(这个是连一起
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![高一解三角形同向量结合的题目请大家务必给我完整一点的过程和思路~因为我不懂= = 【若您简略回答= =分就不能给了.】△ABC中,角A、B、C所对的边分别为a、b、c,且2sin^2 A+B/2(这个是连一起](/uploads/image/z/1581186-66-6.jpg?t=%E9%AB%98%E4%B8%80%E8%A7%A3%E4%B8%89%E8%A7%92%E5%BD%A2%E5%90%8C%E5%90%91%E9%87%8F%E7%BB%93%E5%90%88%E7%9A%84%E9%A2%98%E7%9B%AE%E8%AF%B7%E5%A4%A7%E5%AE%B6%E5%8A%A1%E5%BF%85%E7%BB%99%E6%88%91%E5%AE%8C%E6%95%B4%E4%B8%80%E7%82%B9%E7%9A%84%E8%BF%87%E7%A8%8B%E5%92%8C%E6%80%9D%E8%B7%AF%7E%E5%9B%A0%E4%B8%BA%E6%88%91%E4%B8%8D%E6%87%82%3D+%3D+%E3%80%90%E8%8B%A5%E6%82%A8%E7%AE%80%E7%95%A5%E5%9B%9E%E7%AD%94%3D+%3D%E5%88%86%E5%B0%B1%E4%B8%8D%E8%83%BD%E7%BB%99%E4%BA%86.%E3%80%91%E2%96%B3ABC%E4%B8%AD%2C%E8%A7%92A%E3%80%81B%E3%80%81C%E6%89%80%E5%AF%B9%E7%9A%84%E8%BE%B9%E5%88%86%E5%88%AB%E4%B8%BAa%E3%80%81b%E3%80%81c%2C%E4%B8%942sin%5E2+A%2BB%2F2%EF%BC%88%E8%BF%99%E4%B8%AA%E6%98%AF%E8%BF%9E%E4%B8%80%E8%B5%B7)
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