With respect to a rectangular Cartesian coordinate system, three vectors are expressed as a i j  4ˆ  ˆ  , b i j  3ˆ  2 ˆ  and c k   ˆ  where i j k ˆ ,ˆ ,ˆ are unit vectors, along the X, Y and Z-axis respectively. The unit vectors rˆalong the direction of sum of these vector is

With respect to a rectangular Cartesian coordinate system, three vecto

1.	With respect to a rectangular Cartesian coordinate system, three vectors are expressed as a i j  4ˆ  ˆ  , b i j  3ˆ  2 ˆ  and c k   ˆ  where i j k ˆ ,ˆ ,ˆ are unit vectors, along the X, Y and Z-axis respectively. The unit vectors rˆalong the direction of sum of these vector is
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