永久免费观看A级在线观看

主演由张伶月 ,叶胜群 ,陈伟霞 ,李丰荣 ,傅馨仪 ,吴淑芳 ,洪怡萍 ..该片评分是10分,永久免费观看A级在线观看上映于2013-04-15的灵川县 ,http://www.mugua1.xyz第一时间收录《永久免费观看A级在线观看》的(英语，国语，原声版)并提供免费在线观看,本剧主要讲述：$$\begin{aligned} \boldsymbol{x} &=A^{-1} \boldsymbol{b}=\left[\begin{array}{cc}{\frac{2}{5}} & {\frac{1}{5}} \ {\frac{3}{10}} & {\frac{-1}{10}}\end{array}\right] \cdot\left[\begin{array}{c}{11} \ {-7}\end{array}\right] \ &=\left[\begin{array}{c}{\frac{-1}{5}} \ {\frac{4}{5}}\end{array}\right] \cdot\left[\begin{array}{c}{x} \ {y}\end{array}\right]=\left[\begin{array}{c}{\frac{-1}{5}} \ {\frac{4}{5}}\end{array}\right] \cdot 11+\left[\begin{array}{c}{\frac{-1}{5}} \ {\frac{4}{5}}\end{array}\right] \cdot(-7) \ &=\left[\begin{array}{c}{2} \ {3}\end{array}\right] \end{aligned}$$