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Let m be the unit vector orthogonal to t...

Let m be the unit vector orthogonal to the vector `hat(i)- hat(j)+ hat(k)` and coplanar with the vectors `2 hat (i)+ hat(j) AND hat(j)- hat hat(k)`, If `a= hat(i)- hat(k)`, then the length of the perpendicular from the origin to the plane r.m=a.m is

A

`1/sqrt(26)`

B

`1/(sqrt(5))`

C

`5/(sqrt(26))`

D

`1`

Text Solution

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The correct Answer is:
C
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