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Precalculus Examples

3 n - 1

$3 n - 1$

Step 1

Substitute in the value of

n

$n$ to find the

n

$n$ th term.

a_{2} = 3 (2) - 1

$a_{2} = 3 (2) - 1$

Step 2

Multiply

3

$3$ by

2

$2$ .

a_{2} = 6 - 1

$a_{2} = 6 - 1$

Step 3

Subtract

1

$1$ from

6

$6$ .

a_{2} = 5

$a_{2} = 5$

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

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