Linear AlgebraSuperchallengeDiagonalization & Matrix Powers ShareDiagonalization & Matrix Powers · Superchallenge problemHow many 2×22\times 22×2 matrices with every entry in {−1,0,1}\{-1, 0, 1\}{−1,0,1} satisfy A2=IA^2 = IA2=I?Check Show answer Walk through it step by step Practice more like this Review this concept