38 -2 8 and b = 7 7 2. let vi , v2 1 v3 = -3 6 cob 3 10 a. find the norms of v, v2, and v3 b. normalize each of v1, v2, and v3 to unit vectors. call them q, q2, and q3. c. show that {v1, v2, v3} form an orthogonal d. let m be the matrix with columns v1, v2, and v3. solve mx =b using dot products. set. row reduction, (no e. let q be the matrix with columns qi, q2, and q3. calculate qtq. determinants.) no f. calculate the angle between vi and b, you may leave your answer in the form of an arccos