Các câu hỏi tương tự
Tim x biet:
A. (x-3/4).(3x+1/2)lon hon hoac bang 0
B. (2x+1).(4x+3)be hon hoac bang 0
bạn an viết lên bang 100 # 99 # 98 # .... # 2 # 3 . Thay dau # bang dau cong hoac tru . Ban an da tinh duoc va ra 2407. Hoi ban an tinh dung hay sai
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?
cho a la mot so nguyen .Chung to rang :a2 lon hon hoac bang 0;-a2 be hon hoac bang 0
Cho A = /x-1/ + / x-11/
Tinh A khi 1 nho hon hoac bang x nho hon hoac bang 11
a)
tinh (-10)+12+(-14)+16+(-18)+20+(-24)+26+(-2015)+2017
b) tinh
455+(-311)+3789+(-144)
c) tim tong cac so nguyen x biet
a) -4 <x be hon hoac bang 4
b) -7 < hoac bang x < hoac bang 8
c) -9 < x < hoac bang 5
Bai 1 : Viet tap hop A cac so tu nhien lon hon 4 va ko vuot qua 7 bang hai cach .a ) Viet tap hop cac so tu nhien khac 0 va ko vuot qua 12 bang hai cach .b ) Viet tap hop M cac so tu nhien lon hon hoac bang 11 va ko vuot qua 20 bang hai cach .c ) Viet tap hop M cac so tu nhien lon hon 9 ,nho hon hoac bang 15 bang 2 cach .d ) Viet tap hop A cac so tu nhien ko vuot qua 30 bang 2 cach .e ) Viet tap hop B cac so tu nhien lon hon 5 bang 2 cach .f ) Viet tap hop C cac so tu nhien lon hon hoac bang 18...
Đọc tiếp
Bai 1 : Viet tap hop A cac so tu nhien lon hon 4 va ko vuot qua 7 bang hai cach .
a ) Viet tap hop cac so tu nhien khac 0 va ko vuot qua 12 bang hai cach .
b ) Viet tap hop M cac so tu nhien lon hon hoac bang 11 va ko vuot qua 20 bang hai cach .
c ) Viet tap hop M cac so tu nhien lon hon 9 ,nho hon hoac bang 15 bang 2 cach .
d ) Viet tap hop A cac so tu nhien ko vuot qua 30 bang 2 cach .
e ) Viet tap hop B cac so tu nhien lon hon 5 bang 2 cach .
f ) Viet tap hop C cac so tu nhien lon hon hoac bang 18 va ko vuot qua 100 bang 2 cach .
Ai lam nhanh minh se tick cho nha ,minh can gap .
Ting tong cac so nguyen x biet :
a ) -18 be hon hoac bang x be hon hoac bang 17
b) Gia tri tuyet doi cua x be hon hoac bang 3.
Giup Minh Voi !
a, 2nhan16>hoac bang 2 mu x nhan 74
b, 25 nho hon 5mu x nhan 5 mu 2 nho hon hoac bang 125