i am given an operator(adsbygoogle = window.adsbygoogle || []).push({});

S:R3[x]->R3[x]

and we have the polinomial from which we take the eigenvalues from

t^3 - 4t

find wether S invertable or not???

i tried to think about that and i got that the aigenvalues are 2 , 0, -2

but that only prooves that it diagonizable

i know a law that if the determinant differs zero then its invertable

but i dont know how to apply it here

???

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# Homework Help: A question in finding invertion

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