Tim tat ca phan so co may la so co mot chu so va moi phan so nay deu lon hon 7/9 nho hon 8/9

Mk dg can gap mn giup mk nhe

Cam on ak

2x0x0x0x0

Con cau troi may danh dc dau

Ai giup mk co dau o Window 7 voi C:

Phan tich so A=1.2.3.4....59.60 ra thua so nguyen to thi so mu cua cac thua so nguyen to 2 va 7 la bao nhieu

Giup minh voi cac ban oi $$$$$

ai giup mk voi mk cho 3 like

tim 2 c/s tan cung cua:

a, 2²⁰⁰³ va 7⁹⁹

b, 7¹⁰⁰ ; 8⁵⁰ ; 9⁷⁸; 4¹⁵⁰⁰; 7⁶⁵

tim 3 c/ s tan cung cua :

3⁹⁹⁹

ai giup mk nhanh nha

tim cac so le lien tiep co tan cung la 7.Hoi tich do co bao nhieu thua so

giup mk voi cac ban: C

Cho A=7^58+2/7^57+2

B=7^57+2017/7^56+2017

So sanh A va B

giai nhanh giup mk nhe

dang can gap

CMR : Ton tai 1 luy thua cua 7 co tan cung la 001

bai 1;tinh gia tri bieu thuc 17a+15b+6a+8b voi a+b =100

bai 2;tich cua 2 so la 6210.neu giam 1 thua so di 7 don vi thi tich moi la 5265.tim cac thua so  cua tich

bai 3;co 5 so tu nhien nao ma tich cua chung bang1001 va chu so tan cung la 6

bai 4;tinh;333...3.999...9 trong do co 50 chu so 3 va 50 chu so 9

Tim 1 so co 3 chu so biết chu so hang chuc bang tong chu so hang tram voi chu so hang don vi. Chia chu so hang   tram cho chu so hang dọn vi ta được thương la 3 va du 1. Tich cua so tan cung voi 7 la mot so co chu so tan cung ben phai la 4