I know how to determine the determinant, and the inverse, and how to sovle a system with the inverse of a matrice, but I have no idea what these two questions are talking about:(adsbygoogle = window.adsbygoogle || []).push({});

1. Find the values of [tex]k[/tex] for which the system

[tex]kx+2y=1[/tex]

[tex]3x+(k-1)y=1[/tex]

does not have a unique solution. If [tex]k[/tex] does not have these values, find the unique solution. For each value of [tex]k[/tex] for which no unique solution exists, determine whether or not any solution of the system exists.

what is this question asking me for? What is a unique solution?

2. Find the values of [tex]k[/tex] for which the system

[tex]x+2y+2z=1[/tex]

[tex]2x+y+2z=4[/tex]

[tex]3x+3y+kz=5[/tex]

has a unique solution. Find this unique solution and solve the system for any values of [tex]k[/tex] for which the unique solution does not exist.

again, wtf?

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# Homework Help: HELP NEEDED - Matrices

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