1=0.99999···?

1=0.99999···?
1=0.99999···?

1=0.99999···?
可以这样认为

yesssssssssssssssssss

应该是约等于0.999999999……你看 1/3×3＝1 1/3＝0.333··· 0.333···×3＝0.999··· 怎样看？不是一个问题好不那不是一个问题怎么不是？本来就不是那按上计算不就是1＝0.999···？

1=0.99999···? 急·····················1+2+3+...+999=? 在等腰三角形ABC中,AB=AC.求证1、∠BAD=∠CAE 2、如果AD=AE,那么BD=CE吗?急啊························································· 1+2++3+··········+10000= 为什么0.999999······=1? 1x2x3······x100= 1x2x3······x100= 变态数学题·······方程一道············x+2y+3z=1x=y+12x+3y+5z=2方程组············要过程············我解了之后总觉得无解····· 1/3+2/3=1,但0.333···+0.666···=0.999···,为神马?额······谁能解释一下······ 计算1/（1*4）+1/（4*7）+1/（7*10)+------+1/(97*100)································································································ 一道特难的数学题,0.99999······化为分数! 已知a1=2b a2=2/a1 a3=2/a2 ……a2008=2/a2007 求a1*a2008的积这是一道数学题,帮帮忙···记住a1不是a*1切忌··快啊······················································ 2[4/3y—（2/3y—1/2）]=3/4y急·································!1 计算1-3+5-7+9-11+··········+97-99= 如果x的绝对值除以x=-1,则x=?快点啊······························· 为了求1+2+2的平方+2的立方+····················2的2010次方为了求1+2+2的平方+2的立方+····················2的2008次方 的值，可令S=1+2+2的平方+2的立方+·············· 300*1+300*2+300*3+···················300*30=?这种题目怎么换算的急, 阅读只管向前奔跑的答案1、文章开头四句诗有什么作用························································································