Xueba hunting BTC
Publish: 2021-05-02 15:28:07
1. A is m × So we know R (a) & lt= Min (m, n)
C is an invertible matrix of order n, we know that RC = n
b = AC, we know that B is obtained by a progressive transformation, and the transformation is c c invertible, we can know that the column rank of
a is constant
so r (a) = R (b)
C is an invertible matrix of order n, we know that RC = n
b = AC, we know that B is obtained by a progressive transformation, and the transformation is c c invertible, we can know that the column rank of
a is constant
so r (a) = R (b)
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