Mathematics
Senior High
Resolved
我要幫我的排列組合上香ಥ_ಥ
一開始千位數的地方就求錯了，希望有人可以幫忙看一下是哪裡壞掉🙇♀️
3
2. 由數字 0, 1, 2, 3, 4, 5 作四位數,若數字不可重複,如果將作成的四位數由小而大排列,
則第 213 個數為
$4235
收1
2-23)
三
5×4×3=60
5x4x3 = 60
=60
1
4 x 3 = 12
192
32.
34
=12204
=12 216
3452
7216
34 50 215
3425
214
34 20
athematics.
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呃啊啊啊知道哪裡出錯了！謝謝你🙇♀️～