Mathematics · Matrices
Let A, B and C be three 2 × 2 matrices with real entries such that B = (I + A)−1 and A + C = I. If BC = [1−5][−12] and CB [x1][x2] = [12][−6], then the value of x1 + x2 is:
- 14
- 2−2
- 30✓
- 42
Correct answer
0
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