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31 votes
Solve using matrix inverse method 3x 2y 3x-2y+3z=8 , 2x+ y - z = 1, 4x-3y + 2z =4

I really really need the answer for this pls help me ​

User Marc Estrada
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1 Answer

16 votes
16 votes

Explanation:

A=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤,x=⎣⎢⎢⎡xyz⎦⎥⎥⎤,B=⎣⎢⎢⎡814⎦⎥⎥⎤

∣A∣=⎣⎢⎢⎡324−21−33−12⎦⎥⎥⎤

=3[1−3−12]−1(−2)[24−12]+3[241−3]⇒3(2−3)−2(4+4)+

User Graceann
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