en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

simplify (7!)/(5!*2!)

Solution

simplify

\frac{7 !}{5 ! \cdot 2 !}

Solution

21

Solution steps

\frac{7 !}{5 ! \cdot 2 !}

Cancel the factorials:

\frac{n !}{( n - m ) !} = n \cdot (n - 1) \dots (n - m + 1), n > m

\frac{7 !}{5 !} = 7 \cdot 6

= \frac{7 \cdot 6}{2 !}

\frac{7 \cdot 6}{2 !} = 21

= 21

Popular Examples

simplify 2^{-n}simplify

2^{- n}

simplify-2/3+1/4 simplify

- \frac{2}{3} + \frac{1}{4}

expand (9+x)(9-x)expand

(9 + x) (9 - x)

simplify (12)/(sqrt(6))+sqrt(6)simplify

\frac{12}{6} + 6

factor x^3-6x^2+9x-4 factor

x^{3} - 6 x^{2} + 9 x - 4

Frequently Asked Questions (FAQ)

What is (7!)/(5!*2!) ?
The solution to (7!)/(5!*2!) is 21