Question

[Oct. 2017 (CO
[April 2006 (
June 2019 (D.E.E.E), Sept
1. Using Matrix Inversion method, solve the equations :
(i) 2x + 8y + 5z = 5, x + y + z = -2, x + 2y - z = 2
(ii) x + y + z = 6, x - y + z = 2, 2x + y - z= 1
April 2010 (D.E.E.E), Oct. 2012 (D.M.E), Oct. 2013 (D.E.E.E), Apri
(iii) x+y-z= 3, 2x + 3y + z = 10, 3x - y - 7z = 1
(iv) x + y + z = 3, x + 2y + 3z = 4, x + 4y + 9z = 6
(v) 2x - y + z = 4, x + y + z = 1, x - 3y – 2z = 2
[April 2008 (D.CM.E), April 2009 (D.M.E), Sept. 2020 (
(vi) 2x + 3y + 4z = 29, x + y + 2z = 13, 3x + 2y + z = 16
(vii) x + 2y + 3z = 6, 3x – 2y + z = 2, 4x + 2y + z = 7
(viii) x+y + 4z = 6, 3x + 2y – 2z = 9, 5x + y + 2z = 13.
(ix) x + 2y + 3z = 6, 2x + 4y + z = 7, 3x + 2y + 3z = 8
[Oct. 2010 (D.E.C.E), Oct. 2013 (D.CM.E), April 2015 (
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Answer 1

Answer:

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