Question

please prove that 1+1=10 by mathematical form

Answer 1

some numbers in binary using the dec-bin convention:
1          1
2          10
3          11
4          100
5          101
6          110
7          111
8          1000
9          1001
10        1010 

therefore, 1+1=10       [(1+1=2)and in binary (2=10)