MAT223H1 : Summary notes 2End

4. (10 points) Let two vectors?-(x1,22, ,xn) and у : (yī,12 yn). a) Provide definition of orthogonality. b) Prove that if # and are mutually orthogonal, then they are linearly independent.

Determine if the following vectors are orthogonal. u = [-3 4 6 0], v = [1 -7 18 -2] Are the two vectors orthogonal? A. The vectors u and v are not orthogonal because u middot v = 1. B. The vectors u and v are not orthogonal because u + v = . C. The vectors u and v are orthogonal because u + v = . The vectors u and v are orthogonal because u middot v = 1.