Calculus Examples

$\sum_{k = 1}^{4} k$

Step 1

Expand the series for each value of $k$ .

$1 + 2 + 3 + 4$

Step 2

Simplify.

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Step 2.1

Add $1$ and $2$ .

$3 + 3 + 4$

Step 2.2

Add $3$ and $3$ .

$6 + 4$

Step 2.3

Add $6$ and $4$ .

$10$

$10$

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