First slide

Vectors

Question

The angle between vectors $(\vec{A} \times \vec{B}) and (\vec{B} \times \vec{A})$ is

Moderate

A

Zero
B

$π$
C

$\frac{π}{4}$
D

$\frac{π}{2}$

Solution

$(\vec{A} \times \vec{B}) and (\vec{B} \times \vec{A})$ are parallel and opposite to each other. So the angle will be $π$

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