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For any vector vec r, the value of i xx...

For any vector `vec r`, the value of ` i xx (vec r xx i) + j xx (vec r xx j) + k xx (vec r xx k) =`

A

`vec 0`

B

`2 vec r`

C

`-2 vec r`

D

none of these

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The correct Answer is:
B
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HIMALAYA PUBLICATION-VECTORS AND THEIR APPLICATIONS-QUESTION BANK
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