For vectors and ,

MATHEMATICS · Single correct · CBSE · Mathematics · Vector Algebra · Vector Algebra

Problem

For vectors

\mathbf{a}

and

\mathbf{b}

\mathbf{a}\cdot\mathbf{b}=8

|\mathbf{a}|=5

and

|\mathbf{b}|=4

. The angle

\theta

between them (to the nearest degree) is (a)

53^\circ

(b)

66^\circ

(c)

60^\circ

(d)

24^\circ