For this case we have that the components of the vector u are given by: u = 4 * (cos (30) i + sin (30) j) Rewriting we have: u = 4 * ((root (3) / 2) i + (1/2) j) u = 2 root (3) i + 2j Answer: The component form of this vector is: u = 2 root (3) i + 2j