vectors

Question: The value of $(\overrightarrow A + \overrightarrow B )\, \times (\overrightarrow A - \overrightarrow B )$ is

1) 0

2) ${A^2} - {B^2}$

3) $\overrightarrow B \times \overrightarrow A $

4) $2(\overrightarrow B \times \overrightarrow A )$

Solution:

Explanation: explanation

multiplication-of-vectors

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