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What is the anlge between vec P xx vec Q...

What is the anlge between `vec P xx vec Q and vec Q xx vec P` is

A

zero

B

`(pi)/(2)`

C

`pi`

D

`(3pi)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`vec P xx vec Q = vec R and vec Q xx vec P =-vec R`
`therefore` The angle between `vec R and -vec R" is "180^(@)" or "pi`.
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