Q.If $\vec{a} \cdot \vec{a} = 0$ , then

\vec{a} = \vec{0}

\vec{a}

is unit vector

\vec{a}

is null vector

both a and c

The correct solution involves applying the fundamental concept to derive the final value step by step...

Already a member? Login here

Q.If a⃗⋅a⃗=0\vec{a} \cdot \vec{a} = 0a⋅a=0, then