(a+a^2+a^3+a^4+...+a^29+a^30) chia het cho (a+1) (a thuoc N)
cac ban giup minh voi nhanh len nhe minh dang can gap
Tinh: S=1-2-3-4-5-...-199-200-201-202.
GIUP MINH VOI, MINH DANG CAN GAP.
CHO B=(1/4-1).(1/9-10....(1/100-1)
GIAI NHANH LEN MINH DANG CAN GAP
AI GIAI DUNG CHI TIET MINH K CHO 2 LIKE
a) chung to A=3+3^3+...+3^1991 chia het co 13 ,41
b)n(n+1)(n+2) chia het cho 2 ,3
ai giup minh truoc minh se like cho .minh dang can gap
ai giup mk ta ban than ko zay nhanh len mk dang can gap
Tinh nhanh ( neu co the ) : 4^2017 : ( 4^2014 + 3 . 4^2014 )
Mik dang can gap moi nguoi giup minh voi a
☹➞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 ❕
Cho day so : 1 ; 1 + 2 ; 1 + 2 + 3 ; 1 + 2 + 3 + 4 : ...
Co so hang nao cua day tren tan cung bang 2 khong ? Vi sao
Nhanh nhe to dang can gap
Bài 4 : Tinh hop li
1/ (-37) + 14 +26 +37
2/ (-24) +6 +10 +24
3/ 15+23 + (-25) + (-23)
4/ 60 +33 +(-50) +(-33)
5/ (-16) + (-209) + (-14) + 209
6/ (-12) + (-13) +36 + (-11)
cac ban giup minh cau nao thi giup !!
nhung ma ai giup mik het mik se tick cho !!
nhanh len nha mik dang can gap !!
