Question

一一ㄑ

我藍筆的算式錯在哪

用0.1.2.3.4.5 权字不重複,作4位权
Q:3的倍权有幾个?
3k:0.3
3k+1:1.4
3k+2:2.5
0 0 0 0
(I)(3K+1.3K+1.3k+2,3k+21+4=24个
(Ⅱ)(3K.3K.3K+1.3k+2)
任意一開頭為的
(Cici cici) x4! (C; C?c?)x3!

Answer 1

✨ 最佳解答 ✨

qn

C²₁C¹₁應改為C²₂