Which of the following are orthonormal sets of vectors (a) { ( l l l). ( l-l l). ( l

Chapter 4, Problem 3

(choose chapter or problem)

Which of the following are orthonormal sets of vectors? (a) { ( l l l). ( l-l l). ( l l-l)} (b) { ( Jw Jw). ( Vfo Jw)} (c) { (,o, ). (,o, ). (o, 1,0)} (d) {(} (o, .). ( 5 1 -2 \/30'\/30'\/30 )} {( 4 2 ) ( -1 2 1 ) (e) \/20' \/20' o , V7,' \/6' \/6 , ( 1 -2 5 Vii'Vii''\/32 )}