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補集合と共通部分,和集合 [3TRIAL数学I 問題93]
U={1, 2, 3, 4, 5, 6, 7} を全体集合とする。
Uの部分集合 A=1, 2, 3, 4), B={2, 4, 6} について,
次の集合を求めよ。
(2) B
(4) AnB
(6) AnB
(3) AnB
(5) AUB
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