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Asked by Bob

Find the 2 x 2 matrix A such that pmatrix{(-1,-1)(1 -1)} A = I, where I is the 2 x 2 identity matrix.
8 years ago

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Answered by Steve
If MA = I, then A = M<sup>-1</sup>

Can you do matrix inverses?
8 years ago
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Find the 2 x 2 matrix A such that pmatrix{(-1,-1)(1 -1)} A = I, where I is the 2 x 2 identity matrix.

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