B C

Câu a

ok

lếu mà tính toán thì 1\(+1=\) 2 buổi vì 1\(\chi\) 1\(=\) 1 vậy thì 1\(+\) 1\(=\) 2 thế thì 1\(+\)1\(=\) 2 \

3 vậy 1\(+\)1\(\chi\) 1\(=\) 2 thế 3 \(+\) 2\(=\) 5 vậy

1\(\chi\) 1\(=\) 1 /

1\(+\)1\(\chi\) 1\(+\)3\(+\)2\(+\) 5\(=\) 12 vậy

1\(+\)1\(=\) 12 đố dì hó hơn đi thiên tài đây trữ còn đâu đố như đúng rồi

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co cai lit

☠