A=1+2+22+23+...+262+263
2A=2+22+23+24+...+263+264
2A-A=2+22+23+24+...+263+264-1+2+22+23+...+262+263
A=264-1
\(A=1+2+2^2+2^3+..+2^{62}+2^{63}\)
\(2A=2+2^2+2^3+...+2^{63}+2^{64}\)
\(2A-A=2^{64}-1\)
\(A=2^{64}-1\)
A=1+2+22+23+...+262+263
2A=2(1+2+22+23+...+262+263)
2A=2+23+24+25...+263+264
2A-A=(2+23+24+25...+263+264)-(1+2+22+23+...+262+263)
A=264-1
Nha bạn. Chúc bn ht
bn phan lộc viết nhầm bước gần cuối nha. Lẽ ra phải có dấu ngoặc nhé
