Calculus Examples

$\sum_{n = 2}^{6} \frac{(n - 1)!}{2}$

Step 1

Expand the series for each value of $n$ .

$\frac{(2 - 1)!}{2} + \frac{(3 - 1)!}{2} + \frac{(4 - 1)!}{2} + \dots + \frac{(6 - 1)!}{2}$

Step 2

Simplify the expanded form.

$\frac{153}{2}$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\frac{153}{2}$

Decimal Form:

$76.5$

Mixed Number Form:

$76 \frac{1}{2}$