Find a vector of magnitude 5 units

MATHEMATICS · Subjective · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

6. Find a vector of magnitude 5 units, and parallel to the resultant of the vectors

\vec{a}=2 \hat{i}+3 \hat{j}-\hat{k}

and

\vec{b}=\hat{i}-2 \hat{j}+\hat{k}