If \hat{n} is a unit vector in the direction of the vector A, then
Solution
The unit vector of any vector \dot{A}is defined as
\hat{A}=\frac{\dot{A}}{\left | \dot{A} \right |}
Three vectors A, B and C satisfy the relation A B = 0 and A C = 0. The vector A is parallel to
Solution
Since \dot{A}.\dot{C}=0=\dot{A}.\dot{B}, it means that \dot{A}
is perpendicular to both \dot{C}\: and\: \dot{B}, hence \dot{A}
is parallel to (\dot{B}\times \dot{C})or(\dot{C}\times \dot{B}).
If A and B are two vectors, then the correct statement is
