解四元一次方程-3.97*A+0.068*B-0.083*C=58.01.035*A-0.186*B+0.018C=91.31.377*A-0.486*B+0.05C+0.05*D=-43.80.31*A+0.343*B+0.155*C+0.085*D=-57.70.313*A+0.503*B+0.035*C-0.035D=101.5求A=?B=?C=?D=?

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解四元一次方程-3.97*A+0.068*B-0.083*C=58.01.035*A-0.186*B+0.018C=91.31.377*A-0.486*B+0.05C+0.05*D=-43.80.31

解四元一次方程-3.97*A+0.068*B-0.083*C=58.01.035*A-0.186*B+0.018C=91.31.377*A-0.486*B+0.05C+0.05*D=-43.80.31*A+0.343*B+0.155*C+0.085*D=-57.70.313*A+0.503*B+0.035*C-0.035D=101.5求A=?B=?C=?D=?
解四元一次方程
-3.97*A+0.068*B-0.083*C=58.0
1.035*A-0.186*B+0.018C=91.3
1.377*A-0.486*B+0.05C+0.05*D=-43.8
0.31*A+0.343*B+0.155*C+0.085*D=-57.7
0.313*A+0.503*B+0.035*C-0.035D=101.5
求A=?B=?C=?D=?

解四元一次方程-3.97*A+0.068*B-0.083*C=58.01.035*A-0.186*B+0.018C=91.31.377*A-0.486*B+0.05C+0.05*D=-43.80.31*A+0.343*B+0.155*C+0.085*D=-57.70.313*A+0.503*B+0.035*C-0.035D=101.5求A=?B=?C=?D=?
方程系数组成的五个向量线性无关,五个方程求解不出四个未知数.根据前四个方程得到的解为A=-195.9231 B=-805.6852 C=8012.3857 D=-11323.9248.