I have the following matrix C =(adsbygoogle = window.adsbygoogle || []).push({});

3 2 1 9

4 2 6 12

1 4 -3 3

0 1 8 (3-b)

y1=[-1 -1 1 -1] transpose

For the vector y, I need to find all values of b such that the system of equations y=Cx has no unique solutions. Can someone help....

Thanks

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# Matrix with an Unknown

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