Gọi só thứ 1000 là a, ta có:
(a - 1) : 3 + 1 = 1000
(a - 1) : 3 = 1000 - 1
(a - 1) : 3 = 999
a - 1 = 999.3
a - 1 = 2997
a = 2998
2 bn trả lời sai rồi siêu hacker mới trả lời đúng
cho day 2,11,29,56,92,.. a) tim so hang thu 100 cua day b)so 407 la so hang thu may cua day
cho day 2,11,29,56,92,..
a) tim so hang thu 100 cua day
b)so 407 la so hang thu may cua day
cho dãy số 2 5 8 11, ...
a)nêu quy luật của dãy số trên
b) viet tap hop a gom 10 so hang dau tien cua day so
c) xac dinh so thu 20 cua day so , so 101 la so hang thu bao nhieu cua day . Tinh tong cua 20 so hang dau tien cua day
cho day so:1;4;7;1013;.....
so hang thu 1000 cua day la so nao
tra loi dung 1 tick se danh ve pn
So thu 1000 cua day so 7;12;17;22;27...la so nao ?
So thu 1992 va 38264thuocday so da cho ko?neu co thi la so thu may cua day
cho day so 1,1;2,2;3,3;.....99,0. hoi so hang thu 50 cua day so la so nao
Bai 5:a,Tim chu so thu 1000 khi viet lien tiep lien nhau cac so hang cua day chan 2,4,6,8,......
b,Tim chu so thu 1000 khi viet lien tiep lien nhau cac so hang cua day le 1,3,5,7,9,.....
cho day so :2,4,6,8 .....,2480
a. day so tren co bao nhieu so hang
b. tim so hang thu 2015 cua day
c.tinh tong 2015 so hang dau tien cua day
d.chu so thu 2015 cua day la chu so nao
cho day so 11,14,17,....,68
Neu ta tiep tuc keo dai cac so hang cua day so thi so hang thu 2007 la bao nhieu