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1 [ 2a d d+gl 25. Find det 26 e eth 2c f fti mark
2. Let A be a 2 x 2 matrix and det A= -3. What is det (2AAT A-1) ? (a) 36 (b) -18 (c) 18 (d) -36 (e) 9
1 35. If A = a b c] | 6 5 1 5 and Adj A = -30 [def 10 B: -24 C: -4 4 -24 -4 10 -30 , what is the value of det A? -4 | mark A: 6 D: -84
