Precalculus Examples

$\sum_{k = 2}^{6} \sqrt{k}$

Step 1

Expand the series for each value of $k$ .

$\sqrt{2} + \sqrt{3} + \sqrt{4} + \dots + \sqrt{6}$

Step 2

Simplify the expanded form.

$9.83182209$

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