This video returns to look at Simultaneous equations for the Methods 1 and 2 course. Rather than looking at the ways of solving them, I show how to use techniques to see if there are zero, one or infinite solutions. This is done with a number of examples with the last example using Matrices to find the equations which have zero, one and infinite numbers of solutions.
I show how equations can have zero, one and infinite solutions and exam tips and tricks.
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