en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

expand (n(n-1))/2 !

Solution

expand

\frac{n ( n - 1 )}{2}!

Solution

(\frac{n ^{2}}{2} - \frac{n}{2})!

Solution steps

\frac{n ( n - 1 )}{2}!

Expand

n (n - 1) : n^{2} - n

= \frac{n ^{2} - n}{2}!

Simplify

\frac{n ^{2} - n}{2} : \frac{n ^{2}}{2} - \frac{n}{2}

= (\frac{n ^{2}}{2} - \frac{n}{2})!

Popular Examples

expand 1/((s+2)^2(s-2))expand

\frac{1}{( s + 2 ) ^{2} ( s - 2 )}

expand (x+3)(x^2=7x+1)expand

(x + 3) (x^{2} = 7 x + 1)

expand (xy-3x-2y+6)dx expand

(x y - 3 x - 2 y + 6) d x

expand (a,b,-b,a)*(c,d,e,f)expand

(a, b, - b, a) \cdot (c, d, e, f)

expand (2x-3)(ln(x))expand

(2 x - 3) (ln (x))

Frequently Asked Questions (FAQ)

What is expand (n(n-1))/2 ! ?
The solution to expand (n(n-1))/2 ! is ((n^2)/2-n/2)!