若<img src=https://huaweicloudobs.ahjxjy.cn/35EE784092FF7ACB6F7DD4A89C24329D.png title=QQ图片20160224221501.png alt=QQ图片20160224221501.png/>是二阶非齐次线性方程<img src=https://huaweicloudobs.ahjxjy.cn/BF80E75DC88661040CEB417E72A89625.png title=QQ图片20160224221516.png alt=QQ图片20160224221516.png/>的三个线性无关的特解,<img src=https://huaweicloudobs.ahjxjy.cn/33E05B95D74C8390CB16B77459FF34F7.png title=QQ图片20160224221546.png alt=QQ图片20160224221546.png/>为任意常数,则该方程的通解为( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/58793071810DC05D4132755BAA68B6C1.png title=QQ图片20160224221602.png alt=QQ图片20160224221602.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BD6314F2A0B44ECEBDA7804F681D165D.png title=QQ图片20160224221627.png alt=QQ图片20160224221627.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/36BB040484C742B66EA68C10B95D7011.png title=QQ图片20160224221639.png alt=QQ图片20160224221639.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/F119C09F959A0EEB5FB5079F2DE597EB.png title=QQ图片20160224221651.png alt=QQ图片20160224221651.png/>