来源:蜘蛛抓取(WebSpider)
时间:2016-10-09 23:37
标签:
html 占位符
设A 2 =0.012&345&678&987&654&321×(1+2+3+…+9+…+3+2+1),B 2 =0.012&345&679,则9o10 9 (1-|A|)B=( )
∵1 2 =1,11 2 =121,111 2 =12321,… =5+3+…+9+…+3+2+1=81,∴|A|=0.×9=0.-10 -9 ,∴10 9 (1-|A|)=10 9 o10 -9 =1.又∵B 2 =0.012&345&nb...
为您推荐:
扫描下载二维码