<img src="https://static.zxtiku.com/wangke/imgs/topic/3b94f1d4b4ca2fb9e34d2d5b83aab515.jpg"/><br /> A、A＝(1,2,3,－2,4,6);B=(3,-1,2,3,-1,2);A*B <br /> B、 A＝[1,2,3,-2,4,6];B=[3,-1,2,3,-1,2];A*B<br /> C、 A＝[1,2,3;-2,4,6];B=[3,-1;2,3;-1,2];A*B <br /> D、A＝[1,2,3;-2,4,6];B=[3,-1;2,3;-1,2];AB