简答题:求向量组<img src="http://www.weimei168.com/uploads/202208/1612580423661.png" width="20" height="29" />=(0，0，0，1)<img src="http://www.weimei168.com/uploads/202208/161258043034951.png" width="14" height="25" />，<img src="http://www.weimei168.com/uploads/202208/161258010087261.png" width="24" height="29" />=(1，2，-1，1)<img src="http://www.weimei168.com/uploads/202208/161258043034951.png" width="14" height="25" />，<img src="http://www.weimei168.com/uploads/202208/161258032591021.png" width="22" height="30" />=(1，-2，-1，0)<img src="http://www.weimei168.com/uploads/202208/161258043034951.png" width="14" height="25" />，<img src="http://www.weimei168.com/uploads/202208/161258047427451.png" width="24" height="29" />=(-1，-2，1，1)<img src="http://www.weimei168.com/uploads/202208/161258043034951.png" width="14" height="25" />，<img src="http://www.weimei168.com/uploads/202208/161258032591021.png" width="22" height="30" />=(2，0，1，-1)<img src="http://www.weimei168.com/uploads/202208/161258043034951.png" width="14" height="25" />的秩．