moi nguoi oi giup minh voi
tinh tong
S=1-2+3-4+....+2005-2006
NHANH NHA CAM ON
1 cho day so 6,24,60,120,210,...... tinh tong 100so hang dau
2) A= 3/4*7+3/7*10+.....+3/73*76
giup minh voi nhanh len nha minh tich cho
cho K = 1 + 11 + 112 + ...1199
a ) tinh tong K
b ) Chung to K chia het cho 3 va 4
giup minh voi voi tui minh can rui
ai nhanh minh se tick va ket ban
mn oi giup minh cau nay nua voi cam on nhieu lam
tinh tong
1-4+7-...+331-334
nhanh nha cam on
☹➞cac ban giup minh cau nay voi
☛ tinh tong
M = 1+\(\dfrac{1}{5}\)+\(\dfrac{3}{35}\)+...\(\dfrac{3}{9603}\)+\(\dfrac{3}{9999}\)
➜giup minh nhanh nhe minh dang can gap lam moi nguoi a
➞thank you cac ban ❕
cau 1. Chung minh rang C=2+2^2+2^3+....+2^99+2^100 chia het cho 31
b, Tinh tong C
c,Tim x de 2^2x-1-2=C
CAC BAN GIUP MINH BAIF NAY VOI
tinh tong:1 +2+3+4+.....+n
ai giai giup minh vs minh dang rat can
Tính :
S1= 1-2+3-4+....................+2017-2018
S2= 1-4+7-10+..............+2015-2018
S3= 1+2-3-4+.....................+2015+2016-2017-2018
Giup minh voi minh dang can gap nha
ai nhanh ma dungthi minh tich cho nha
x+1+2+3+..+2017=2018 tim x.Ai giup minh voi