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If bar a, barb, barc are three mutually ...

If `bar a, barb, barc` are three mutually perpendicular vectors of equal magnitude, then the angle made by `bar a+barb+barc` with each of `bar a, barb, barc` is

A

`cos^(-1)((1)/(3))`

B

`cos^(-1)((2)/(3))`

C

`cos^(-1)((1)/(sqrt(3)))`

D

`cos^(-1)((2)/(sqrt(3)))`

Text Solution

Verified by Experts

The correct Answer is:
C
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