N= [i,1;-1,i](adsbygoogle = window.adsbygoogle || []).push({});

I used this theorem: N N^{-1}= I_{n}

Thus:

[i,1;-1,i]*[a,b:c,d]=[1,1;1,1]

I then found:

ia+c=1

ib+d=1

-a+ic=1

-b+id=1

Can I conclude an inverse does not exist. If so, how?

If not, what do I do?

Thanks,

Frank

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# Does the following matrix have an inverse?

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