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[函数] 无理函数值域

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guanmo1 Posted 2020-3-5 22:50 |Read mode

Last edited by hbghlyj 2025-3-21 05:52求 $f(x)=2 \sqrt{5-\sin \alpha}+\sqrt{5-\cos \alpha}$ 的值域。

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kuing Posted 2020-3-6 01:41

应该是高次方程……

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