(a-b) (a+b)= - Vidyadip

MCQ

$(\vec{a}-\vec{b}) \times(\vec{a}+\vec{b})=$

✓
$2(\vec{a} \times \vec{b})$
B
$\vec{a} \times \vec{b}$
C
$|\vec{a}|^2-|\vec{b}|^2$
D
इनमें से कोई नहीं

✓

Answer

Correct option: A.

$2(\vec{a} \times \vec{b})$

A

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