题目内容
△ABC中已知a = 6,
答案:
解析:
解析:
B = 60°,C = 90°时C = 12 B = 120°,C = 30°时C = 6
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题目内容
△ABC中已知a = 6,
B = 60°,C = 90°时C = 12 B = 120°,C = 30°时C = 6
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