【简答题】求解齐次线性方程组 .(如有负分数,请在英文下写下形如:-3/8的形式,负号请用英文下短负号) 解:系数矩阵 .令x2=c1,x4=c2,则 .因此, = + (其中c1, c2是任意常数). 这里,a1= ,a2= ,a3= ,a4= ,a5= ,a6= ,a7= ,a8= ,a9= ,a10= .
【简答题】求解非齐次线性方程组 .(如有负号,请使用英文下短负号) 解:增广矩阵 ,令x2=c1,x3=c2,则 ,因此, = + + ,(其中c1, c2是任意常数).这里,a1= ,a2= ,a3= ,a4= ,a5= ,a6= ,a7= ,a8= ,a9= ,a10= ,a11= ,a12= ,a13= ,a14= ,a15= .