Các câu hỏi tương tự
tinh tong hop li:
F=1+2-3-4+5+6-7-8+....(F co 2015 so hang)
ai lam nhanh dung,day du minh tich !!!!!!!!!!!!!!!!!!
cho x,y thuoc Z:
Chung minh:6x+11y chia het cho 31<=>x+7y chia het cho 31
Lam nhanh ho minh nhe
Ai lam nhanh va day du nhat minh se tick cho
Tim x biet:
a,10+x / x+17=3 / 4
b'40+x / 77-x=6/7
Nho viet ca cach lam nua nhe ,ai lam day du minh se tick!
Tim x biet:
(x-7)11=(x-7)10
Cach lam nua nha
Ai lam nhanh nhat va cach lam day du minh se tich cho
cho day so 1 1/3; 1 1/8; 1 1/15 ;1 1/24 ; 1 1/ 35 goi s la tich 100 so dau tien cua day tinh 51s
chi cach lam nua nhe cac ban
Tim x biet: (\(2x^2+7\))x(\(-3x-9\))<\(0\)
Giup mik voi ai nhanh mik tik cho^-^
Nho lam day du ho mik nhe,Thanks=))
D = 2539ab chia het cho 24
24 = 3 . 8 . Va 3;8 nguyen to cung nhau
D chia het cho 8 <=> 9ab chia het cho 8
cac bn lam tiep ho minh nhe to lam den day la chiu roi neu to lam sai thi cac ban sua lai ho minh nhe thanks nhe
Rut gon cac bieu thuc sau:
a, (x+3)(x-4)-(x-1)(x+2)
b, a3+b3+3.a2.b+3ab2
Ai lam nhanh nhat va day du nhat thi to se tick cho
(Nho lam day du moi tick nhe,ko can lam het ca 2 cau ,biet lam cau nao thi lam cau do)
tim x biet;
/x+1/2/+/x+1/6/+.......+/x+1/110/=11*x
Cac ban trinh bay that day du nhe
Cac ban lam nhanh ho minh,minh dang can gap