Which of the following is true1Two collinear vectors are always equal in magnitude.2Two vectors having same magnitude are collinear3Two collinear vectors having the same magnitude are equal4\(\vec{a}\) and \(\vec{-a}\) are collinearAnswer & explanation+Correct answer: option 4Note that \(-\vec{a}=(-1)\vec{a}\) so \(\vec{a}\) and \(-\vec{a}\) are collinear.
