请提供有关正交分解法的有关习题
http://www.wuli.com.cn/Jiaoan/Gaozhong/Gao1/2006-06-23/Wuli_20060623113321.html
http://www.zb.edu.sh.cn/wuli-kg/wu1/wuli001-800/742.htm
http://www.hengqian.com/html/2005/10-11/***********.shtml