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Hoàng Minh Đức
Giới thiệu về bản thân
Hello các bạn đã đến thăm thông tin của mình nhé
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2024-04-25 20:44:41
\(\left[{}\begin{matrix}\\\\\\\end{matrix}\right.Iiiiiioocosb cai 788\)
2024-04-24 21:13:08
\(888\int\)
2024-04-24 21:12:46
\(\sqrt{7}\)
2024-04-24 21:04:04
\(\begin{matrix}&&\\&&_{ }\underrightarrow{ }\end{matrix}\)
2024-04-24 21:03:42
\(\Lambda\sin\)
2024-04-24 21:03:18
\(8\int9\exists\)
2023-10-30 20:27:13
Dcu bài như cc
2023-03-10 21:13:45
2022-10-16 22:40:14
a là hàng đơn vị, b là hàng chục, c là hàng trăm
gọi số đó là abc(3 hàng trong số) ta có : a + b + c = 15
(a+c):2=b
tổng số phần là :
1+2=3 phần
b là : 15 : 3 x 1 = 5
vậy ta có a5c, a<5
a=4, c=6
a=3, c=7
a=2, c=8
a=1, c=9
=> 456, 357, 258, 159
LIKE ĐE
2022-10-16 22:32:35