2^16-1 is the ans ! please confirm !!
its of the form
(a+b)(a-b)=a^2-b^2
so every term taken in this way leads to 2^16-1
if its the right OA please confirm ! as well post the entire explanantion
Vishu
earth@work wrote:i m also getting A : 2^16-1
my method too same as vishu
(2^2-1)(2^2+1)(2^4+1)(2^8+1) = )(2^4-1)(2^4+1)(2^8+1)
=(2^8-1)(2^8+1)=2^16-1