Two vectors,r c and are equal: r= c

Which of the following statements are true? Choose all that apply.


the y-component of r must be equal to the y-component of c
the x-component of r must be equal to the x-component of c
the z-component of r must be equal to the z-component of c
The directions of r and c may be different
The magnitudes of r and c may be different
The unit vector r must be equal to the unit vector c.