Algèbre linéaire Exemples

Trouver la forme réduite échelonnée en lignes [[a,b,c,1000],[100a,200b,500c,300000]]
[abc1000100a200b500c300000]
Étape 1
Multiply each element of R1 by 1a to make the entry at 1,1 a 1.
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Étape 1.1
Multiply each element of R1 by 1a to make the entry at 1,1 a 1.
[aabaca1000a100a200b500c300000]
Étape 1.2
Simplifiez R1.
[1baca1000a100a200b500c300000]
[1baca1000a100a200b500c300000]
Étape 2
Perform the row operation R2=R2-100aR1 to make the entry at 2,1 a 0.
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Étape 2.1
Perform the row operation R2=R2-100aR1 to make the entry at 2,1 a 0.
[1baca1000a100a-100a1200b-100aba500c-100aca300000-100a1000a]
Étape 2.2
Simplifiez R2.
[1baca1000a0100b400c200000]
[1baca1000a0100b400c200000]
Étape 3
Multiply each element of R2 by 1100b to make the entry at 2,2 a 1.
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Étape 3.1
Multiply each element of R2 by 1100b to make the entry at 2,2 a 1.
[1baca1000a0100b100b100b400c100b200000100b]
Étape 3.2
Simplifiez R2.
[1baca1000a014cb2000b]
[1baca1000a014cb2000b]
Étape 4
Perform the row operation R1=R1-baR2 to make the entry at 1,2 a 0.
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Étape 4.1
Perform the row operation R1=R1-baR2 to make the entry at 1,2 a 0.
[1-ba0ba-ba1ca-ba4cb1000a-ba2000b014cb2000b]
Étape 4.2
Simplifiez R1.
[10-3ca-1000a014cb2000b]
[10-3ca-1000a014cb2000b]
 [x2  12  π  xdx ]