Solve the simultaneous equation below using the matrix technique. ...

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Given that the product of a matrix and the inverse of the matrix yields the UNIT matrix. Solve the simultaneous equation below using the matrix technique.
 

3x - 4y + 2z = 1
x + 2y - 4z = -7
-2x + 3y + z = 7
 

i) Express the equation in matrix form
ii) determine the values of x and y and z 

    • 5 years ago
    From the last matrix, we see that x = 1, y = 2, z = 3 ...
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      GiventhattheproductofamatrixandtheinverseofthematrixyieldstheUNITmatrix.doc