mong cac ban cu tha thu vi anh to xam nhap tai khoan
theo cac ban thi khieu vu chan hay thu vi tai sao
theo cac ban thi lap mo hinh chan hay thu vi vi sao
theo to khieu vu thu vi vi no giup ta linh hoat hon
lap mo hinh cung vay vi no rat tot cho nao bo
!!! k to nha
500+500=?
ai da ket ban voi nguye ngo dai lam thi ket voi to boi vi tai khoan cua to mat roi
Tu trong nguon sau ,Suoi Nho can cu len loi qua nhung goc cay ,nhung hon da .vua di suoi nho vua thiet tha goi : -Cac ban oi. hay cung toi.chung minh hoa nhap lai .hay cung nhau ,cac ban oi .Cac lach nuoc nghe loi Suoi Nho nhu bung tinh giac,roc rach nhap bon .qua ba tang nui co,vuot 5 canh rung gia .Suoi Nho da tro thanh Suoi Lon day suc luc.Nang quang len minh Suoi Lon mot bo canh long lanh.Gio thoi vao hon suoi mot dieu nhac ngan nga . Yeu cau:tu doan van tren hay viet mot bai van ke chuyen . Cac ban co gang giup minh nhe . huhu
Hay neu ten cac vi anh hung da co cong va giuong cao ngon co dau tranh chong giac ngoai xam bao ve nen doc lap cho to quoc
lay vi du thu nhap 1 nam cua gia dinh ban nao lam to tich cho
1/1x2 +1/2x3+1/3x4 +...........+1/99x100
Xin cac ban hay giup to tai vi chieu nay to phai di hoc them [thu bay,ngay 26/5]
Xin hay giup to
~ Ko có đề bài -_- ~
Ta có :
\(\frac{1}{1.2}+\frac{1}{2.3}+\frac{1}{3.4}+...+\frac{1}{99.100}\)
\(=\)\(\frac{1}{1}-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{99}-\frac{1}{100}\)
\(=\)\(1-\frac{1}{100}\)
\(=\)\(\frac{99}{100}\)
Chúc bạn học tốt ~
\(\frac{1}{1x2}+\frac{1}{2x3}+\frac{1}{3x4}+...+\frac{1}{99x100}\)
\(=1-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{99}-\frac{1}{100}\)
\(=1-\frac{1}{100}\)
\(=\frac{99}{100}\)
\(\frac{1}{1\times2}+\frac{1}{2\times3}+\frac{1}{3\times4}+...+\frac{1}{99\times100}\)
\(=1-\frac{1}{2}+\frac{1}{2}-\frac{1}{3}+\frac{1}{3}-\frac{1}{4}+...+\frac{1}{99}-\frac{1}{100}\)
\(=1-\frac{1}{100}\)
\(=\frac{99}{100}\)
Tai sao la phoi trai co 2 thuy,nhung la phoi phai co 3 thuy.
giup mik nha cac ban
vi tinh mik khong viet dau duoc
mong cac ban thong cam va tra loi giup mik
giup mik di ma
1) Nuoc nao o phuong tay mo dau cho viec xam luoc cac nuoc o khu vuc Dong Nam A
A. Bo Dao Nha, Tay Ban Nha B. Tay Ban Nha, Anh C. Phap, Bo Dao Nha D. Anh, Phap