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Линейная алгебра Примеры
[015-4143-2271-2]⎡⎢⎣015−4143−2271−2⎤⎥⎦
Этап 1
Swap R2R2 with R1R1 to put a nonzero entry at 1,11,1.
[143-2015-4271-2]⎡⎢⎣143−2015−4271−2⎤⎥⎦
Этап 2
Этап 2.1
Perform the row operation R3=R3-2R1R3=R3−2R1 to make the entry at 3,13,1 a 00.
[143-2015-42-2⋅17-2⋅41-2⋅3-2-2⋅-2]⎡⎢⎣143−2015−42−2⋅17−2⋅41−2⋅3−2−2⋅−2⎤⎥⎦
Этап 2.2
Упростим R3R3.
[143-2015-40-1-52]⎡⎢⎣143−2015−40−1−52⎤⎥⎦
[143-2015-40-1-52]⎡⎢⎣143−2015−40−1−52⎤⎥⎦
Этап 3
Этап 3.1
Perform the row operation R3=R3+R2R3=R3+R2 to make the entry at 3,23,2 a 00.
[143-2015-40+0-1+1⋅1-5+1⋅52-4]⎡⎢⎣143−2015−40+0−1+1⋅1−5+1⋅52−4⎤⎥⎦
Этап 3.2
Упростим R3R3.
[143-2015-4000-2]⎡⎢⎣143−2015−4000−2⎤⎥⎦
[143-2015-4000-2]⎡⎢⎣143−2015−4000−2⎤⎥⎦
Этап 4
Этап 4.1
Multiply each element of R3R3 by -12−12 to make the entry at 3,43,4 a 11.
[143-2015-4-12⋅0-12⋅0-12⋅0-12⋅-2]⎡⎢
⎢⎣143−2015−4−12⋅0−12⋅0−12⋅0−12⋅−2⎤⎥
⎥⎦
Этап 4.2
Упростим R3R3.
[143-2015-40001]⎡⎢⎣143−2015−40001⎤⎥⎦
[143-2015-40001]⎡⎢⎣143−2015−40001⎤⎥⎦
Этап 5
Этап 5.1
Perform the row operation R2=R2+4R3R2=R2+4R3 to make the entry at 2,42,4 a 00.
[143-20+4⋅01+4⋅05+4⋅0-4+4⋅10001]⎡⎢⎣143−20+4⋅01+4⋅05+4⋅0−4+4⋅10001⎤⎥⎦
Этап 5.2
Упростим R2.
[143-201500001]
[143-201500001]
Этап 6
Этап 6.1
Perform the row operation R1=R1+2R3 to make the entry at 1,4 a 0.
[1+2⋅04+2⋅03+2⋅0-2+2⋅101500001]
Этап 6.2
Упростим R1.
[143001500001]
[143001500001]
Этап 7
Этап 7.1
Perform the row operation R1=R1-4R2 to make the entry at 1,2 a 0.
[1-4⋅04-4⋅13-4⋅50-4⋅001500001]
Этап 7.2
Упростим R1.
[10-17001500001]
[10-17001500001]