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向量小题

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大佬最帅 posted 2023-8-27 16:58 |Read mode
$已知  \overrightarrow{a_{1}}, \overrightarrow{a_{2}}, \cdots, \overrightarrow{a_{2023}}  是平面上的单位向量, 且对  1 \leqslant n \leqslant 2023, \overrightarrow{a_{n}} \cdot \overrightarrow{a_{n+1}}=\frac{1}{2} , 这里下标按模 2023 理解.$
$ 则对正整数  i, j, \overrightarrow{a_{i}}  与  \overrightarrow{a_{j}}  夹角的所有可能的取值组成的集合为$

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