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( begin array l A= left[ begin array rrr 1 & 3 & 2 2 & 0 & 3 1 & -1 & 1 end array right], D= left| begin array ccc x & y & z x^ 2 , & y^ 2 & z^ 2 x^ 3 -1 & y^ 3 -1 & z^ 3 -1 end ar | Suva Ai