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If x is a comples cube root of unity and A={:[(1,1,1),(1,x,x^(2)),(1,x^(2),1)]:}," then "A^(-1)= |
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Answer» `(1)/(4){:[(1,X,x^(2)),(z^(2),1,x),(x,x^(2),1)]:}` |
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