First slide

Vectors

Question

Angle between A x B and B x A is [Figure]

Easy

A

$π$
B

$π / 2$
C

$π / 6$
D

none of these

Solution

We know that A x B = - B x A
or 2A x B=0 or A x B=0
$∴ ABsin θ = 0 or \sin θ = 0 or θ = 0^{\circ}, π$

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