Question: 4. (15 points) Consider the 2 X 2 matrices 1 2 4 1 A: (3 4), B=( 1 2), and I=the2X2Identity Matrix. (a) Compute 2A

4. (15 points) Consider the 2 X 2 matrices 1 2 4 1 A: (3 4), B=( 1 2), and I=the2X2Identity Matrix. (a) Compute 2A %B + 61. (b) Compute AB. (c) Compute BTAT. (hint: use part (b) )

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