Algebra Examples

$a_{n} = a_{1} r^{n - 1}$

Step 1

Substitute in the value of $n$ to find the $n$ th term.

$a_{3} = a_{1} r^{(3) - 1}$

Step 2

Subtract $1$ from $3$ .

$a_{3} = a_{1} r^{2}$

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