July 2022 1 53 Report
Дан квадрат ABCD, точка O пересечения диагоналей AC и BD.

1) угол между векторами DB и DA равен ...°

2) угол между векторами CBи DA равен ...°

3) угол между векторами BD и CB равен ...°

4) угол между векторами OA и OC равен ...°

5) угол между векторами OB и OC равен ...°
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