Question

Give an example for which A.B=C.B but A ≠ C .

Answer 1

Thanks for asking the question!

ANSWER::

For better understanding see the figure.

A vector is perpendicular to B vector => B vector along west direction
B vector is perpendicular to C vector => A vector along south direction
And , C vector along north direction.

A . B = 0
Therefore , A . B = B . C
B . C = 0

But , A ≠ C 

Hope it helps!

Answer 2

Answer:

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