Answer to Question #210883 in Linear Algebra for Ree

Question

Question 5:

(5.1)Assume that a vector a of length ||a|| = 3 units. In addition, a

points in a direction that is 135◦ counterclockwise from the

positive x-axis, and a vector b in th xy-plane has a length ||b|| = 1

3 and points in the positive y-direction.

(5.2) Find a ·b. Calculate the distance between the point (−1,√3)

and the line 2x-2y-5=0