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If vec a, vec b, vec c are mutually perp...

If `vec a, vec b, vec c` are mutually perpendicular unit vectors then ` |vec a + vec b + vec c| = `

A

`sqrt3`

B

3

C

1

D

0

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