Mathway

Visit Mathway on the web

Start 7-day free trial on the app

Start 7-day free trial on the app

Download free on Amazon

Download free in Windows Store

Take a photo of your math problem on the app

Finite Math Examples

${}_{3}C_{2}$

Step 1

Evaluate

${}_{3}C_{2}$ using the formula

${}_{n}C_{r} = \frac{n!}{(n - r)! r!}$ .

$\frac{3!}{(3 - 2)! 2!}$

Step 2

Subtract

$2$ from

$3$ .

$\frac{3!}{(1)! 2!}$

Step 3

Simplify

$\frac{3!}{(1)! 2!}$ .

Tap for more steps...

Step 3.1

Rewrite

$3!$ as

$3 \cdot 2!$ .

$\frac{3 \cdot 2!}{(1)! 2!}$

Step 3.2

Cancel the common factor of

$2!$ .

Tap for more steps...

Step 3.2.1

Cancel the common factor.

$\frac{3 \cdot 2!}{(1)! 2!}$

Step 3.2.2

Rewrite the expression.

$\frac{3}{(1)!}$

$\frac{3}{(1)!}$

Step 3.3

Expand

$(1)!$ to

$1$ .

$\frac{3}{1}$

Step 3.4

Divide

$3$ by

$1$ .

$3$

$3$

Enter YOUR Problem

using Amazon.Auth.AccessControlPolicy;

Mathway requires javascript and a modern browser.

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$