1+2-3-4+5+6.....+302
=1+(2-3-4+5)+(6-7-8+9)+.......+(299 -300-301-302)
=1 + 0 + 0+ 0 +........+0
= 1
thanks nhung sai rui ket qua la 303 co thay tui noi do
Giup minh voi cac ban
1+2-3-4+5+6-7-8+.....+994-995-996+997+998
Cac ban giai giup minh bai nay voi
a 1+(-3)+2+(-4)+3+(-5)+...+98+(-100)
b 1+(-5)+2+(-6)+3+(-7)+...+99+(-103)
cac ban giup toi cau nay voi:
Thuc hien phep tinh(hop ly neu co the):
(10/99+11/199-12/299)x(1/2-1/3+-1/6)
mong cac ban giup minh nhanh voi a. Minh xin cam on
ban nao giup minh voi 2+4+6+8+....... +198+200
1+(-6)+2+(-7)+3+(-8)+...+15+(-20)
Giup mk voi, Mk cam on cac ban nhieu
giai giup bai nay voi cac ban oi !: (5x+1- 61) : 22 =24
☹➞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 ❕
Q= 1/2! + 2/3! + 3/4! +...+ n-1/n!
Chung minh rang Q<1
Cac ban oi giup minh voi. Thanks!
a, x+1/2017 + x+2/2016 = x+3/2015 + x+4/2014
Mong cac ban giai giup minh voi
