• 2022-05-27
    设[img=44x48]17d60ca3e2d687c.png[/img]是一个[img=112x44]17d60ca3f577a19.png[/img]阶矩阵,对[img=36x40]17d60ca40541b1d.png[/img]施行一次初等行变换得到矩阵[img=44x48]17d60ca4132c961.png[/img],则[img=44x48]17d60ca422a72f6.png[/img]等于().
    未知类型:{'options': ['一个[img=40x44]17d60ca4326ea6f.png[/img]阶初等矩阵左乘[img=44x48]17d60ca44061873.png[/img]', '一个[img=48x40]17d60ca450683c0.png[/img]阶初等矩阵左乘[img=44x48]17d60ca44061873.png[/img]', '一个[img=40x44]17d60ca463c4ae1.png[/img]阶初等矩阵右乘[img=44x48]17d60ca44061873.png[/img]', '一个[img=48x40]17d60ca47986fdf.png[/img]阶初等矩阵右乘[img=44x48]17d60ca44061873.png[/img]'], 'type': 102}