Question

Why do we add 1 here in (2m+1) +1 <----
Its from RS agarwal pg 5​

Answer 1

Answer:

1/2^m + 1/2^m = 1/2^x;

i solved this algebraically; ==> 1+1/(2^m) = 2^x

==> 2/2^m=1/2^x===cross multiply; m=x+1; x=m-1