[微分] 連續問題
let x if x is a rational number
f(x){
1-x if x is an irrational number
on what values of x is f continuous?
(A)any rational numbers
(B)any irrational numbers
(C)no such x
(D)x=1/2
答案是(D)
可以請高手解答嗎
為什麼不是(A)@@??
謝謝
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推
07/07 15:40, , 1F
07/07 15:40, 1F
→
07/07 15:40, , 2F
07/07 15:40, 2F
推
07/07 16:54, , 3F
07/07 16:54, 3F
→
07/07 16:54, , 4F
07/07 16:54, 4F
→
07/07 16:55, , 5F
07/07 16:55, 5F
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