1/2(1+1/2)(1+1/4)(1+1/16)(1+1/256)

问题描述:

1/2(1+1/2)(1+1/4)(1+1/16)(1+1/256)

1/2(1+1/2)(1+1/4)(1+1/16)(1+1/256)
=(1-1/2)(1+1/2)(1+1/4)(1+1/16)(1+1/256)
=(1-1/4)((1+1/4)(1+1/16)(1+1/256)
=(1-1/16)(1+1/16)(1+1/256)
=(1+1/256)(1+1/256)
=1-1/65536
=65535/65536

1/2(1+1/2)(1+1/4)(1+1/16)(1+1/256)=(1-1/2)(1+1/2)(1+1/4)(1+1/16)(1+1/256)=(1-1/4)((1+1/4)(1+1/16)(1+1/256)=(1-1/16)(1+1/16)(1+1/256)=(1+1/256)(1+1/256)=1-1/65536=65535/65536