giup toi voi bai nay kho qua ( -48) + (-49)
Cac ban hay anh/chi giup minh voi. Minh can gap a. Mong moi nguoi trinh bay day du, ro rang. Minh (em) se tik cho mn da tra loi giup a. Minh (em) cam on nhieu !
De bai: So sanh hai phan so sau: \(\frac{2013.2012-1}{2013.2012}\)va \(\frac{2012.2011-1}{2012.2011}\)
mong cac ban co the giup toi giai bai toan nay
tinh nhanh cac tong sau :
C= 50+48+46+...+2-49-47-45-....-1
cho p=1/2+1/3+1/4+…+1/47+1/48+1/49+1/50
q=1/49+2/48+3/49+…47/3+48/2+49/1
tính p/q
Cac a chi giup e giai bai toan nay nhe : 7.x - 8 = 718 ; ( x - 25 ) - 155 = 0 ; 124 + ( 118 - x ) = 717
( x - 32 ) : 16 = 48
giai dum em bai nay nha cac anh chi:
125.(-8).(-25).9.4.1002:3
em cam on nha
chung to :1/3+2/3^3+3/3^3+4/3^4+...+100/3^100<3/4
mong cac ban giup do lam ho minh bai nay
cac ban oi cac ban xem thu nhu bai nay thay mi.nh cho sai de phai ko neu ko thi chi giup minh nha .60-5.x=40