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If vec p, vec q, vec r are any three vec...

If `vec p, vec q, vec r` are any three vectors, which of the following is not correct

A

`(vec p + vec q ) + vec r = vec p + (vec q + vec r)`

B

`(vec p xx vec q). vec r = vec p . (vec q xx vec r)`

C

`(vec p xx vec q) . vec r = (vec q xx vec p) . vec r`

D

`(vec p xx vec q).vec r ` represents volume of the parallelepiped with colerminous edges `vec p, vec q and vec r`.

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The correct Answer is:
C
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