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Mathematics
Morgan Underwood
5 April, 18:49
2x2 matrix with no inverse
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Calvin Wheeler
5 April, 20:50
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The Inverse of A is A-1 only when A * A-1 = A-1 * A = I.
To find the Inverse of a 2x2 Matrix: swap the positions of a and d, put negatives in front of b and c, and divide everything by the determinant (ad-bc).
Sometimes there is no Inverse at all.
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