Find the angle between the vectors and

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

Problem

Find the angle between the vectors

\mathbf{a} + \mathbf{b}

and

\mathbf{a} - \mathbf{b}

, if

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

and

\mathbf{b} = 3\hat{i} + \hat{j} - 2\hat{k}