TRONG KHÔNG GIAN$ OXYZ$, CHO $ \OVERRIGHTARROW A = \LEFT( {2;3;2} \RIGHT)$ VÀ $ \OVERRIGHTARROW B = \LEFT( {1;1; – 1} \RIGHT)$. VECTƠ $ \OVERRIGHTARROW A – \OVERRIGHTARROW B$ CÓ TỌA ĐỘ LÀ
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Level:
Medium
Question Types: Multiple choice
Answers:
- $ \\\left( {1;2;3} \\\right)$.
- $ \\\left( {3;5;1} \\\right)$.
- $ \\\left( { - 1; - 2;3} \\\right)$.
- $ \\\left( {3;4;1} \\\right)$.