I am having some difficulty with identity matrices in linear algebra at the moment. I am sure it is fairly simple to solve, but I just cannot follow the logic behind this particular problem.(adsbygoogle = window.adsbygoogle || []).push({});

I need to come up with a matrix B (2x2), such thatB =/= IbutB^{2}= I

Since

If I am attempting this correctly, I have to find a number that isnt 1, but if you square it, it equals 1. So I came up with this.Code (Text):I = (1 0)

(0 1)

Code (Text):B = (-1 0)

(0 -1)

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# Homework Help: Linear Algebra - Identity matrices

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