Precalculus Examples

$\sum_{k = 1}^{100} 5$

Step 1

The formula for the summation of a constant is:

$\sum_{k = 1}^{n} c = c n$

Step 2

Substitute the values into the formula.

$(5) (100)$

Step 3

Multiply $5$ by $100$ .

$500$

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