Question: 8. (4 MARKS) Assume that a 3 x 3 matrix A has three eigenvalues A1, A2 and A3. If A1 = 2, A2 = 3


8. (4 MARKS) Assume that a 3 x 3 matrix A has three eigenvalues A1, A2 and A3. If A1 = 2, A2 = 3 and the trace of A is 6. Then A3 is equal to (a) 7 (b) 3; (c) 1; (d) 4; (6) None of these 1 1' 9. (4 MARKS) Given 21 = 1 +z' and 22 = 2 + 31'. Compute ). 1'21 22 (a) 19 +172' (b) 19 171? (c) 17 + 192' (d) 17 197; (6) None of these
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