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Find the direction cosines of a vector v...

Find the direction cosines of a vector `vecr` which is equally inclined with OX,OY and OZ where O is origin. a)`1,1,1` b)`-(4)/(sqrt(3)),-(4)/(sqrt(3)),-(4)/(sqrt(3))` c)`pm((1)/(sqrt(3)),(1)/(sqrt(3)),(1)/(sqrt(3)))` d)`-(1)/(sqrt(2)),-(1)/(sqrt(2)),-(1)/(sqrt(2))`

A

`1,1,1`

B

`-(4)/(sqrt(3)),-(4)/(sqrt(3)),-(4)/(sqrt(3))`

C

`pm((1)/(sqrt(3)),(1)/(sqrt(3)),(1)/(sqrt(3)))`

D

`-(1)/(sqrt(2)),-(1)/(sqrt(2)),-(1)/(sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
C
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