IB
IBO
Mathematics AA
October 2009
QP-200910-Mathematics-P2-SL · Question 4
Question (excerpt):
8809-7302 Turn over 4. [Maximum mark: 6] Let A = − − 3 0 1 2 3 0 4 2 1 . (a) Write down A−1. [2 marks] (b) Let B be a 3 3 × matrix. Given that AB + − − = − − − …
8809-7302 Turn over 4. [Maximum mark: 6] Let A = − − 3 0 1 2 3 0 4 2 1 . (a) Write down A−1. [2 marks] (b) Let B be a 3 3 × matrix. Given that AB + − − = − − − …
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