1 6 Question 1 Suppose that u 2 _2 and v : _;.3 . If Li J. u, then :1: : a 1 (a) 2 (b) 6 (c) 72 (d) *6 (e) none of these Question 2 let u, v and m be vectors in 1R3. If u '1' : 2,1.5'10 : 3: then u - (21) 31.9) is (a) 14 (b) 5 (e) 13 (c) 5 (e) none of these Question 3 Let age be vectors in R3 with \"oil : i : IIUH If the angle between H and v is 60 degrees. then ||2u 3'UH2 : (a) 10 (b) 13 (c) 7 (d) 16 (0) none ofthe above Question 4 If the determinant of a 3 x 3 matrix *2. then the rank of A2 is (a) 2 (b) 1 or 2 (c) 3 (d) impossible to determine (e) none of these Question 5 Suppose that A is a 4 X 4 square matrix with positive determinant and A2 = 4I. Then detA = (a) 2 (b) 4 (c) 8 (d) 16 (0) none of those