计算:(1+봀)(1+1⼀2눀)(1+2的四次方分之一)(1+2的十六次方分之一) 要过程。。。。急啊

过程,要巧算
2025-01-02 09:52:33
推荐回答(2个)
回答1:

(1+½)(1+1/2²)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=2(1-1/2)(1+½)(1+1/2²)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=2(1-1/2²)(1+1/2²)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=2(1-1/2^4)(1+1/2^4)(1+1/2^8)(1+1/2^16)
=2(1-1/2^8)(1+1/2^8)(1+1/2^16)
=2(1-1/2^16)(1+1/2^16)
=2(1-1/2^32)
=2 -1/2^31

^表示指数,2^31表示2的31次方。

回答2:

(2²+1)(2^4+1)(2^8+1)(2^16+1)
=(2^2-1)(2²+1)(2^4+1)(2^8+1)(2^16+1)/(2^2-1)
=(2^4-1)(2^4+1)(2^8+1)(2^16+1)/3
= (2^8-1)(2^8+1)(2^16+1)/3
=(2^16-1)(2^16+1)/3
=(2^32-11)/3
=(2^32-1)/3