\(A=1+2+2^2+2^3+......+2^{2012}\)
\(=\left(1+2+2^2\right)+\left(2^3+2^4+2^5\right)+.....+\left(2^{2010}+2^{2011}+2^{2012}\right)\)
\(=1\left(1+2+2^2\right)+2^3\left(1+2+2^2\right)+.....+2^{2010}\left(1+2+2^2\right)\)
\(=1.7+2^3.7+......+2^{2010}.7\)
\(=7\left(1+2^3+....+2^{2010}\right)⋮7\left(đpcm\right)\)
Tim so du cua A=1+2+2^2+...+2^100 khi chia cho 35 ???
So du cua A = 20 + 21 +22 +23 + ......... + 22016 khi chia cho 8 la.......
Tim so du khi chia A=1+2+2^2+...+2^100 cho 35
Ai giup mik mik like ca thang
Viet bieu thuc dai so bieu thi:
a) tich cua 3 so nguyen lien tiep;
b) tong cac binh phuong cua 2 so le bat ki
c) thuong cua 2 so nguyen trong do mot so chia cho 3 du 1 ,mot so chia cho 3 du 2;
d) luy thua bac n cua tong hai so a va b
2^0+2^1+2^2+..........+2^2014 khi chia cho 7 du may
tim so du cua phep chia sau:
a:20042004 chia cho 11
b:22003chia cho 35
Số dư của \(A=2^0+2^1+2^2+...+2^{2012}\) khi chia cho 7 là???
Tim so du khi A=1+2+2^2+...+2^100 cho 35
Please help me
1,
Cho a=2^13.5^7 . Tim so cac chu so cua so a
2 ,
Cho b=3^2009.7^2010.13^2011 . Tim chu so hang don vi cua b
