1/2 + 1/y 1/2 = 5, 2/x - 3y -4z = 11, 3/x +2/y - 1/z = - 6
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Answer:
X=
∣A∣
1
(adjA)B
X=−1
⎣
⎢
⎢
⎡
2
−9
−6
0
−2
−1
−1
3
2
⎦
⎥
⎥
⎤
⎣
⎢
⎢
⎡
1
1
2
⎦
⎥
⎥
⎤
X=−1
⎣
⎢
⎢
⎡
2−2
−5
−3
⎦
⎥
⎥
⎤
⎣
⎢
⎢
⎡
x
y
z
⎦
⎥
⎥
⎤
=
⎣
⎢
⎢
⎡
0
5
3
⎦
⎥
⎥
⎤
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