If A = 1 -1 2 …
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If A = 1 -1 2 and B = 2 2 -4
2 3 4 -4 2 -4
0 1 2 2 -1 5
are two square matrix, find AB and hence solve the system of linear equation:
x - y = 3; 2x + 3y + 4z = 17; y + 2z = 7
Posted by Prabhnoor Singh 7 years, 3 months ago
- 2 answers
Naveen Sharma 7 years, 3 months ago
Ans.
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=>
=>
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x - y = 3
2x + 3y + 4z = 17
y + 2z = 7
We can represent these eqution In Matrix
, ,
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From 1
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Naveen Sharma 7 years, 3 months ago
From 1
We can say that
=>
=>
=>
=>
X = 2
y = -1
z = 4
0Thank You