If two non-zero vectors and satisfy

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

Problem

If two non-zero vectors

\mathbf{a}

and

\mathbf{b}

satisfy

\mathbf{a}\cdot\mathbf{b}= -|\mathbf{a}|\,|\mathbf{b}|

, find the angle between them and state whether they point in the same direction or in opposite directions.