Find the angle between two vectors with magnitudes √3 and 2 respectively having

In triangle ABC (Fig 10.18), which of the following is not true:

(a)

(b)

(c)

(d)

are two collinear vectors, then which of the following are incorrect:

(a)

(b)

(c) the respective components of are not proportional

(d) both the vectors have same direction, but different magnitudes.

Find the projection of the vector on the vector