Question

【1 1 0 1 0 0 1 1 1 1 0 1 1 0 2 2 1 1 0 1 1】这个矩阵的秩怎么求.

Answer 1

1 1 0 1 0 0 1

1 1 1 0 1 1 0

2 2 1 1 0 1 1

r2-r1,r3-2r1

1 1 0 1 0 0 1

0 0 1 -1 1 1 -1

0 0 1 -1 0 1 -1

r3-r2

1 1 0 1 0 0 1

0 0 1 -1 1 1 -1

0 0 0 0 -1 0 0