# Mathematics - Discrete Structures

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Perform the given operation for the following zero-one matrices:

1 0 1 1 1

1 0 0 = 0 1

0 1 1 1 1

Show that

2 3 -1

1 2 1

-1 -1 3

is the inverse of

7 -8 5

-4 5 -3

1 -1 1

https://brainmass.com/math/discrete-structures/matrices-operation-inverse-212068

#### Solution Preview

(1) The product matrix exists and is 3 x 2

Product =

[1 * 1 + 0 * 0 + 1 * 1, 1 * 1 + 0 * 1 + 1 * 1;

1 * 1 + 0 * 0 + 0 * 1, 1 * 1 + 0 * 1 ...

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