若<imgwidth="70"height="26"v:shapes="_x0000_i1276"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image279.png">为齐次线性方程组且<imgwidth="54"height="20"v:shapes="_x0000_i1277"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image297.png">的一个基础解系则()
①
<imgwidth="174"height="26"v:shapes="_x0000_i1278"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image349.png">也是它的一个基础解系
③
<imgwidth="174"height="26"v:shapes="_x0000_i1279"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image349.png">不一定是<imgwidth="54"height="20"v:shapes="_x0000_i1280"src="http://wljy.whut.edu.cn/uploadfiles/word/xxds03.files/image297.png">的基础解系