Precalculus Examples

$\sum_{x = 3}^{3} - 1 x^{2}$

Step 1

Expand the series for each value of $x$ .

$- 1 \cdot 3^{2}$

Step 2

Simplify.

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Step 2.1

Raise $3$ to the power of $2$ .

$- 1 \cdot 9$

Step 2.2

Multiply $- 1$ by $9$ .

$- 9$

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