Question

Find the position vector of the mid-point of the vector joining the points vectors A(3i + 2j + 6j) and B(i + 4j - 2k).

Answer 1

 \(\vec{OA}=3\vec{i}+2\vec{j}+6\vec{k}\) 

 \(\vec{OB}=\vec{i}+4\vec{j}-2\vec{k}\)  

Formula to be used – The midpoint of a line joining points a and b is given by . The position vector of the midpoint