Recent content by qybah

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Hi everyone I'm taking a linear algebra class at university right now and this is one of my homework questions . I am unsure how to even approach these questions. Any pointers in the right direction would be greatly appreciated. I apologize in advance for not showing any attempt at this...

Hi thanks for the reply. Am i on the right track if i do it like this? Also if i were to analyze the two cases you mentioned, would it be correct to say that when $a^2-4\ne 0$ or $a^2\ne\pm 2$ the system has a unique solution? Thanks in advance

Hi can someone please explain how to do this question: Given two equations; x-ay= 1 ax-4y=b For which values of a does each system have a unique solution, and for which pairs of values (a,b) does each system have more than one solution? All help is greatly appreciated