齊澆!呫{乩平 02
輻齊 1 = 0.999...
賣胰辨Z醒曰&皮失永皿!把葔A辨航鶹璉+v遙!ч歖侲﹤ч∮濊忕齊忕呺拈斗詈BD∥LL戊件疋亙□正2﹤蹴﹤鑠A咍る啻遙窗扎Cxcel"p末戊件鶱鶱鞃隞穭糗蝌鏟v遙!ч歖侲﹤詈B
﹛桶鎂鑠趡臇I!斗詈拋A醒儂ㄠ !醜﹤蹴Bょ!醜呡v遙亦曰廓桅詈B⑷邊芺鍊櫡樈賥⑧P艩B
啁隱/b>
1/3 = 0.333...(賣齊鰾茵厝3 ∠ 0攻軠歖ч !B
!A侹蠶!忤font color="#ff0000"> 3
曰胸!詈B
3 x1/3 = 3 x0.333...
3/3 = 0.999...
1 = 0.999...﹛ч諘詈B1 ﹦ 1 ﹜1 = 0.999... ﹤鈺鑠鄔B
ょ!隱/b>
1 = 1 ч賠B嫗!詈魼!蹴賞B
1 = 0.999... 蹴歖l蹴﹤筴
騝蛅!蹴B腹遙!蹴樈窣
10a - a = 10a - a !樈H
!A= 鰣汐呧除鶗髽ont color="#ff0000">a = 0.999...曰曆2鉞蹴詈B
10a - a = 10 x 0.999...
- 0.999...
9a = 9.999...
- 0.999...
9a = 9
a = 1
銨手!忤font color="#ff0000">a = 0.999...
騔瘙薜!咈Aa
= 1 !ч蹴詈﹤詈B
俬鉞蹺A0.999...
= 1﹛﹛A1 = 0.999...﹝
!ч拈A10a - a = 10a - a ﹤鉖閟A10 = 10 ﹜幛.I讀鶗1 = 1 鷊чB蚎痲A由仿玉永弁旦﹝
﹛闊4拆咍w劂!ч鑠摳咈蜅m斤詈B颱)o蹴詈B呡+遵恃щ鑠﹤颬鉡鉣B!詈遄逽壔碨螔蹴咈蛵y!﹤B
﹛咍畸醒坳邈呫p末戊件⑷邊芺鍊櫡蹴﹤詊l葮詈B銆猀!呫g伊件玉曰隱!A忔-G,拍轔p□汁鰬鍥歖醜詈坯材\鍊瀦蹴蹴﹤詈B畸鶱靘!ば0梁(~扤拜箔!坫\鍊櫡蹴﹤B賣胰辨Z醒曰&皮失永皿!把鑠蹴g鷍!葮樈賞隱草鉣B
﹛!葔A手黴P賬Aㄠ ﹤醛鍼犓⑴⑶拈蛵詈詈歖蹴﹤ч蹺B楀④呣l蹴﹤呧詊чB
2004.05.01 |