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Mathematics 5 Online
OpenStudy (anonymous):

consider the system of equations in the matrix A = [1,2,3 ,a ,2] [0,2,1 ,0 ,-3] [0,0,b+2,0 ,b] [0,0,0 ,c^2-1,c+1] I know that the system is inconsistent if b = -2 or c = 1. how would I find out for what values of a,b,c such that the system has a unique solution?

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