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(1+1/2)(1+1/4)(1+1/8)(1+1/16).这样的式子怎么化简?可以不算请给出思路

题目详情
(1+1/2 )(1+1/4)(1+1/8)(1+1/16).这样的式子怎么化简?可以不算 请给出思路
▼优质解答
答案和解析
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)+1/2^16
=(1-1/2)[(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)]/(1-1/2)+1/2^16
=[(1-1/2)(1+1/2)](1+1/2^2)(1+1/2^4)(1+1/2^8)/(1-1/2)+1/2^16
=(1-1/2^2)(1+1/2^2)(1+1/2^4)(1+1/2^8)/(1-1/2)+1/2^16
=(1-1/2^4)(1+1/2^4)(1+1/2^8)/(1-1/2)+1/2^16
=(1-1/2^8)(1+1/2^8)/(1-1/2)+1/2^16
=(1-1/2^16)/(1-1/2)+1/2^16
=2(1-1/2^16)+1/2^16
=2-2/2^16+1/2^16
=2-1/2^16