汪国真最短的诗:初一数学计算题(注意过程详细)

来源:百度文库 编辑:查人人中国名人网 时间:2024/05/04 15:42:10
(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)-1
1/2为二分之一 以下类同

(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)-1
=(1-1/2)(1+1/2)(1+1/2^2)(1+1/2^4)(1+1/2^8)/(1-1/2)-1
=(1-1/2^2)(1+1/2^2)(1+1/2^4)(1+1/2^8)/(1-1/2)-1
=(1-1/2^4)(1+1/2^4)(1+1/2^8)/(1-1/2)-1
=(1-1/2^8)(1+1/2^8)/(1-1/2)-1
=(1-1/2^16)*2-1
=2-1/2^15-1
=1-1/32768
=32767/32768

=(1+0.5)(1+1)(1+2)(1+4)-1
=1.5*2*3*5-1
=45-1
=44

原式=2(1—1/2 )(1+1/2 )(1+ 1/4)(1+ 1/16)(1+ 1/256)—1
=2(1— 1/4)(1+1/4 )(1+ 1/16)(1+1/256 )—1
=2(1— 1/16)(1+1/16 )(1+1/256 )—1
=2(1— 1/256)(1+ 1/256)—1
=2(1—1/65536 )—1
=1—2/65536
=65534/65536