Question 1031802
Cramer's rule,
{{{A=(matrix(4,4,
0,10,4,-2,
-3,-17,1,2,
1,1,1,0,
8,-34,16,-10))}}}
{{{abs(A)=-1568}}}
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{{{A[w]=(matrix(4,4,
-4,10,4,-2,
2,-17,1,2,
6,1,1,0,
4,-34,16,-10))}}}
{{{abs(A[w])=-6272}}}
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{{{A[x]=(matrix(4,4,
0,-4,4,-2,
-3,2,1,2,
1,6,1,0,
8,4,16,-10))}}}
{{{abs(A[x])=0}}}
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{{{A[y]=(matrix(4,4,
0,10,-4,-2,
-3,-17,2,2,
1,1,6,0,
8,-34,4,-10))}}}
{{{abs(A[y])=-3136}}}
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{{{A[z]=(matrix(4,4,
0,10,4,-4,
-3,-17,1,2,
1,1,1,6,
8,-34,16,4))}}}
{{{abs(A[z])=-9408}}}
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.
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{{{w=abs(A[w])/abs(A)=(-6272)/(-1568)=4}}}
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{{{x=abs(A[x])/abs(A)=0}}}
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{{{y=abs(A[y])/abs(A)=(-3136)/(-1568)=2}}}
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{{{z=abs(A[z])/abs(A)=(-9408)/(-1568)=6}}}
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