Find u*v, if u=13j and v=i+3j

We have the following vectors:

u = 13j

v = i + 3j

The scalar product of both vectors is given by:

u * v = (13j) * (i + 3j)

We have then:

u * v = (1 * 0) + (13 * 3)

u * v = 0 + 39

u * v = 39

Answer:

The scalar product of both vectors is given by:

u * v = 39