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Given three multisets, X, Y, and Z as follows: X = [a:2, c:1, e:5] Y = [a:8, b:9, c:9, d:2] Z = [b:5, c:8, d:1] 2. What are the resulting multisets of the following operations, and estimate their cardinality? . (XnZ) + Y . (xuY)nz . (X-Y)n(Z+X)