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If `A=[{:(omega,0),(0,omega):}]`, where `omega` is cube root of unity, then what is `A^(100)` equal to ?A. AB. `-A`C. OD. none of these |
Answer» Correct Answer - A We have, `A={:omega[(1,0),(0,1)]=omegaI_2:}` `:. A^100=omega^100(I_2)^100=omega^100I_2=omegaI_2=A`. |
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