Mathematics
Senior High
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為什麼0.9循環小數會等於1
八
7. 請問下列哪些敘述是正確的?
(A)是有理數
(B)給定長度為1的線段,可用作圖做出長度為7 的線段
(C)每一個有理數都可以經由作圖在數線上找到其位置
(D)在數線上兩個相異整數的距離至少是1
E0.9=1
A, B, C, D, E
公式.
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