Ta có :
\(A=2^0+2+2^2+..................+2^{2010}\)
\(\Rightarrow2A=2+2^2+2^3+..............+2^{2010}+2^{2011}\)
\(\Rightarrow2A-A=\left(2+2^2+..............+2^{2011}\right)-\left(1+2+2^2+.................+2^{2010}\right)\)
\(\Rightarrow A=2^{2011}-1\)
Ta thấy :
\(A=2^{2011}-1\)
\(B=2^{2011}-1\)
\(\Rightarrow A=B\)