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Hello.
00:01
So we're given our matrix a.
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Now what we want to do here is take our given matrix a and then basically concatenate it with the 2x2 identity.
00:10
So i sub 2 here, i2 is just the identity.
00:14
So a is a 2 by 2 matrix.
00:15
So we want the 2 by 2 identity, which is just the matrix, which has 1s down the main diagonal and 0s everywhere else.
00:22
If you put a vertical bar next to a, and then we put the 2 by 2 identity.
00:28
Now we're just going to transform.
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This matrix into reduced row echelon form.
00:34
So we want a one as our leading element here.
00:39
So to get that, we just want to divide by three.
00:43
Right...