输入问题...

初级微积分示例数列和级数

计算总和

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

解题步骤 1

展开 $x$ 每个取值的序列。

$2 \cdot 3$

解题步骤 2

将 $2$ 乘以 $3$ 。

$6$

输入您的问题

数列和级数

Arithmetic Sequences/Progressions Geometric Sequences/Progressions Finding the Next Term of the Sequence Finding the nth Term Given a List of Numbers Finding the nth Term Finding the Sum of First n Terms Finding the Sum of the Series Finding the Sum of the Infinite Geometric Series

Mathway 需要 javascript 和现代浏览器。

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