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[不等式] ABC中,求证:$\frac{1}{\tan A}+\frac{1}{\tan B}+\frac{1}{\tan C}\geq\sqrt{3}$ |
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I am majia of kuing
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Comment猜到你会贴这个😉
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isee=freeMaths@知乎
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2025-7-20 14:03 GMT+8
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