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tienanh Dang
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2022-07-26 20:06:17
1 . chịu
2. như câu 1, dễ ẹc
2022-07-26 19:50:55
2022-07-25 20:59:21
Ta gọi số đó là x.
Ta có : 39<x<45
=> x thuộc {40;41;42;43;44}
2022-07-25 20:56:53
đáp án là :
B(2)={0;2;4;6;8;10;...}.
2022-07-25 20:08:21
2022-07-25 20:03:07
2022-07-25 19:37:00