Determine whether the set is finite or infinite. If the set is finite, find its size....

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Determine whether the set is finite or infinite. If the set is finite, find its size. (a) {x|x€ Z and x² < 10} (b) P({a, b, c, d}), where P denotes the power set (c) A x B, where A = {1, 2, 3, 4, 5} and B = {1, 2, 3} - (d) P(A), where A is the power set of {a,b,c} and P(A) denotes the power set of A. (e) A x B, where A = {a, b, c} and B = 0 Determine whether the set is finite or infinite. If the set is finite, find its size. (a) {x|x€ Z and x² < 10} (b) P({a, b, c, d}), where P denotes the power set (c) A x B, where A = {1, 2, 3, 4, 5} and B = {1, 2, 3} - (d) P(A), where A is the power set of {a,b,c} and P(A) denotes the power set of A. (e) A x B, where A = {a, b, c} and B = 0