Answer :




(


(


LET, (



|| = (12 + ( - 2)2 + 22)1/2


|| = (1 + 4 + 4)1/2 = (9)1/2 = 3


a unit vector in the direction of the sum of the vectors is given by:



a vector of magnitude 6 units which is parallel to the vector is:



Ans:


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