设<img class=jc-formula data-tex=A src=https://huaweicloudobs.ahjxjy.cn/53F870B8D448BB3DB08A67264B6329F9.png style=vertical-align: middle;/>是4×3矩阵,若齐次线性方程组<img class=jc-formula data-tex=AX=0 src=https://huaweicloudobs.ahjxjy.cn/CEC806624F9D642E698219EC94F94B3E.png style=vertical-align: middle;/>只有零解,则矩阵<img class=jc-formula data-tex=A src=https://huaweicloudobs.ahjxjy.cn/53F870B8D448BB3DB08A67264B6329F9.png style=vertical-align: middle;/>的秩为[填空].