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Consider the following matrix A, and let B = A−1. Find b31, b32, and b33. (i.e.,...

Consider the following matrix A, and let B = A−1. Find b31, b32, and b33. (i.e., find the entries in the third row of  A−1.
A =
1 1 -2
8 -1 4
-2 -1 2

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