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Algèbre linéaire Exemples
[4-31010-20-2110]⎡⎢⎣4−31010−20−2110⎤⎥⎦
Étape 1
Étape 1.1
Multiply each element of R1R1 by 1414 to make the entry at 1,11,1 a 11.
[44-34140410-20-2110]⎡⎢
⎢⎣44−34140410−20−2110⎤⎥
⎥⎦
Étape 1.2
Simplifiez R1R1.
[1-3414010-20-2110]⎡⎢
⎢⎣1−3414010−20−2110⎤⎥
⎥⎦
[1-3414010-20-2110]⎡⎢
⎢⎣1−3414010−20−2110⎤⎥
⎥⎦
Étape 2
Étape 2.1
Perform the row operation R2=R2-R1R2=R2−R1 to make the entry at 2,12,1 a 00.
[1-341401-10+34-2-140-0-2110]⎡⎢
⎢⎣1−341401−10+34−2−140−0−2110⎤⎥
⎥⎦
Étape 2.2
Simplifiez R2R2.
[1-34140034-940-2110]⎡⎢
⎢⎣1−34140034−940−2110⎤⎥
⎥⎦
[1-34140034-940-2110]⎡⎢
⎢⎣1−34140034−940−2110⎤⎥
⎥⎦
Étape 3
Étape 3.1
Perform the row operation R3=R3+2R1R3=R3+2R1 to make the entry at 3,13,1 a 00.
[1-34140034-940-2+2⋅11+2(-34)1+2(14)0+2⋅0]⎡⎢
⎢
⎢
⎢⎣1−34140034−940−2+2⋅11+2(−34)1+2(14)0+2⋅0⎤⎥
⎥
⎥
⎥⎦
Étape 3.2
Simplifiez R3R3.
[1-34140034-9400-12320]⎡⎢
⎢
⎢⎣1−34140034−9400−12320⎤⎥
⎥
⎥⎦
[1-34140034-9400-12320]⎡⎢
⎢
⎢⎣1−34140034−9400−12320⎤⎥
⎥
⎥⎦
Étape 4
Étape 4.1
Multiply each element of R2R2 by 4343 to make the entry at 2,22,2 a 11.
[1-3414043⋅043⋅3443(-94)43⋅00-12320]⎡⎢
⎢
⎢
⎢⎣1−3414043⋅043⋅3443(−94)43⋅00−12320⎤⎥
⎥
⎥
⎥⎦
Étape 4.2
Simplifiez R2R2.
[1-3414001-300-12320]⎡⎢
⎢⎣1−3414001−300−12320⎤⎥
⎥⎦
[1-3414001-300-12320]⎡⎢
⎢⎣1−3414001−300−12320⎤⎥
⎥⎦
Étape 5
Étape 5.1
Perform the row operation R3=R3+12R2R3=R3+12R2 to make the entry at 3,23,2 a 00.
[1-3414001-300+12⋅0-12+12⋅132+12⋅-30+12⋅0]⎡⎢
⎢⎣1−3414001−300+12⋅0−12+12⋅132+12⋅−30+12⋅0⎤⎥
⎥⎦
Étape 5.2
Simplifiez R3.
[1-3414001-300000]
[1-3414001-300000]
Étape 6
Étape 6.1
Perform the row operation R1=R1+34R2 to make the entry at 1,2 a 0.
[1+34⋅0-34+34⋅114+34⋅-30+34⋅001-300000]
Étape 6.2
Simplifiez R1.
[10-2001-300000]
[10-2001-300000]