vectors

Question: If $\overrightarrow A = 3\hat i + \hat j + 2\hat k$ and $\overrightarrow B = 2\hat i - 2\hat j + 4\hat k$ then value of $|\overrightarrow A \times \overrightarrow B |\,$ will be

1) $8\sqrt 2 $

2) $8\sqrt 3 $

3) $8\sqrt 5 $

4) $5\sqrt 8 $

Solution:

Explanation: explanation

multiplication-of-vectors

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