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The position vector of a point lying on the line joining the points whose positions vectors are $ \hat i+\hat j-\hat k$ and $\hat i- \hat j +\hat k$ is :

\[\begin {array} {1 1} (a)\;\hat {j} & \quad (b)\;\hat {i}\\ (c)\;\hat {k} & \quad (d)\;\overrightarrow {0}\end {array}\]

1 Answer

$(b)\;\hat {i}$
answered Nov 7, 2013 by pady_1
 

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