mei m1 vectors chapter assessment answers
wo vectors are perpendicular if and only if their dot product is zero. Answer: Proof: If vectors \( \vec{A} \) and \( \vec{B} \) are perpendicular, then by definition, the angle \( \theta \) between them is \( 90^\circ \). Since: \[ \vec{A} \cdot \vec{B} = |\vec{A}| |\vec{B}| \co