[函数] 两角和的范围

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chudengshuxue Posted at 2020-11-30 20:27:36 |Read mode

Last edited by hbghlyj at 2025-3-19 18:05:25已知 $\alpha, \beta \in[0,2 \pi)$，且 $\cos \alpha+\cos \beta=1$，则 $\alpha+\beta$ 的范围可求吗？

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2025-4-21 01:43 GMT+8

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