Các câu hỏi tương tự
hay viet cac tap hop sau bang cach khac
A={ 9;11;13;...;99]
B={ 12 ; 24 ; 36 ;48}
M= { THANG 4 ; THANG 6 ;THANG 9 ; THANG 11}
N = { X THUOC N / X LON HON HOAC BANG 3 , LON HON HOAC BANG 10}
Q = { X THUOC N / X LON HON 0 ,BE HON 10}
1. cho 4 stn a lon hon hoac bang b, b lon hon hoac bang c, clon hon hoac bang d.
CM:(a-b)(a-c)(a-d)(b-c)(b-d)(c-d)
2. CM: co the tim dc 1 stn k sao cho: (1997^k)-1 chia het cho 10^4
3. tong cac chu so cua 1 so chinh phuong co the bang 1995 dc k?
4. tong cua 1995 stn khac 0 dung bang 1995. Hoi UCLN cua chung la bao nhieu?
tim x
3 | x - 2 | + 2x = 19 , x lon hon hoac bang 2
cho a la mot so nguyen .Chung to rang :a2 lon hon hoac bang 0;-a2 be hon hoac bang 0
tim x,y biet |x-3|^2014+|6+2y|^2015 be hon hoac bang 0
Tap hop A x thuoc N 2 lon hon hoac bang va be hon hoac bang 78.
tim x,y thuoc Z biet
|y|.|2x+3|=8
|2x+4|+|y-3|=0
|x-1|+|2y+7|=3
|x+5|+|2y+6| nho hon hoac bang 0
Tim so nguyen x, biet:
( x -5) .(x -10) lon hon hoac bang 0
Tim x € n thoa manA)6 chia het cho (x-1)B)14 chia het cho (2×X+3)C)X+1 la uoc (15D)X chia het cho 13 va 10 be hon hoac bang X be hon hoac bang 70E)X € B(15)va 20 be hon hoac bang X be hon hoac bang 80F ) X € uoc (42); X lon hon 5G)35 chia het cho X va X be hon 10Mik kO biet viet ki hieu 😀😀😀 thong cam nhaAi dug thi thong minh 🎓🎓🎓mik se kban va tick 🐇🐇
Đọc tiếp
Tim x € n thoa man
A)6 chia het cho (x-1)
B)14 chia het cho (2×X+3)
C)X+1 la uoc (15
D)X chia het cho 13 va 10 be hon hoac bang X be hon hoac bang 70
E)X € B(15)va 20 be hon hoac bang X be hon hoac bang 80
F ) X € uoc (42); X lon hon 5
G)35 chia het cho X va X be hon 10
Mik kO biet viet ki hieu 😀😀😀 thong cam nha
Ai dug thi thong minh 🎓🎓🎓
mik se kban va tick 🐇🐇