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klio [65]
3 years ago
12

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.

Mathematics
1 answer:
Elena-2011 [213]3 years ago
4 0
The result of operation A - 1 is:
 0     0    -3
-10  -2    -1
-3    -2     1

which is equal to matrix B.

Looking at the third row we have:
b31 = -3
b32 = -2
b33 = 1
which are the entries in the third row of A - 1
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