Mathematics
Senior High

この2問の解説をお願いします!

(2) 4ティ1 ミィミミ3 pjテ{z12 くく4 (3) 4ティ{2ヶ一1lzは自然数 = {izlxは正の友数j

Answers

A、Bそれぞれの集合を書き出すと分かりやすいよ!

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