# 查看完整版本 : binomial theorem 求高手入睇完答案都唔明.....

Jayw123 2018-11-30 10:38 AM

## binomial theorem 求高手入睇完答案都唔明.....

Jayw123 2018-11-30 10:55 AM

ppresent 2018-11-30 10:10 PM

(右邊x既exponent必然是n-i才會令乘埋係x^n)
i.e. [img]https://latex.codecogs.com/gif.latex?%281&plus;x%29%5En%3D1&plus;nx&plus;%20%7Bn%5Cchoose2%7D%20x%5E2%20&plus;%20%7Bn%5Cchoose3%7Dx%5E3&plus;...[/img]
[img]https://latex.codecogs.com/gif.latex?%281&plus;x%29%5En%281&plus;x%29%5En%3D%281&plus;nx&plus;%20%7Bn%5Cchoose2%7D%20x%5E2%20&plus;%20%7Bn%5Cchoose3%7Dx%5E3&plus;...%29%281&plus;nx&plus;%20%7Bn%5Cchoose2%7D%20x%5E2%20&plus;%20%7Bn%5Cchoose3%7Dx%5E3&plus;...%29[/img]

ppresent 2018-11-30 10:12 PM

[[i] 本帖最後由 ppresent 於 2018-11-30 10:23 PM 編輯 [/i]]

Jayw123 2018-12-2 01:48 AM

CHING 想問你講GA左邊加邊係指緊咩? 係講緊(2n,n). 同埋想問係咪(1+X)^2N=(2N,N)?洗唔洗證埋

Jayw123 2018-12-2 01:50 AM

Jayw123 2018-12-2 03:42 AM

x^n ga coefficient 唔係(2n,n) 咩?

Jayw123 2018-12-2 03:50 AM

CHING SORRY 但我真係睇唔明左邊右邊係指緊咩同埋左邊nx 同右邊(n,n-1) 點突然出黎........

ppresent 2018-12-2 09:18 AM

[align=left]如圖[/align]

[[i] 本帖最後由 ppresent 於 2018-12-2 09:24 AM 編輯 [/i]]