Multiply the vector OA by the unit vector of 37 degrees to get the vector OB.

A unit vector of 37 degrees refers to a vector with a modulus of 1 and an angle of 37 degrees.

That is, (4/5, 3/5)

The formula of vector multiplication is

X=x 1 times x2-y 1 times y2.

Y=x 1 times y2+x2 times y 1.

It should be noted that x2 and y2 substituted in the formula here are unit vectors of 37 degrees.

Results x and y are the coordinates of point B.