Calculus Examples

$f (x) = \tan (\frac{π x}{2})$

Step 1

Find the domain to determine if the expression is continuous.

Tap for more steps...

Step 1.1

Set the argument in $\tan (\frac{π x}{2})$ equal to $\frac{π}{2} + π n$ to find where the expression is undefined.

$\frac{π x}{2} = \frac{π}{2} + π n$ , for any integer $n$

Step 1.2

Solve for $x$ .

Tap for more steps...

Step 1.2.1

Multiply both sides of the equation by $\frac{2}{π}$ .

$\frac{2}{π} \cdot \frac{π x}{2} = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2

Simplify both sides of the equation.

Tap for more steps...

Step 1.2.2.1

Simplify the left side.

Tap for more steps...

Step 1.2.2.1.1

Simplify $\frac{2}{π} \cdot \frac{π x}{2}$ .

Tap for more steps...

Step 1.2.2.1.1.1

Cancel the common factor of $2$ .

Tap for more steps...

Step 1.2.2.1.1.1.1

Cancel the common factor.

$\frac{2}{π} \cdot \frac{π x}{2} = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2.1.1.1.2

Rewrite the expression.

$\frac{1}{π} (π x) = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2.1.1.2

Cancel the common factor of $π$ .

Tap for more steps...

Step 1.2.2.1.1.2.1

Factor $π$ out of $π x$ .

$\frac{1}{π} (π (x)) = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2.1.1.2.2

Cancel the common factor.

$\frac{1}{π} (π x) = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2.1.1.2.3

Rewrite the expression.

$x = \frac{2}{π} (\frac{π}{2} + π n)$

Step 1.2.2.2

Simplify the right side.

Tap for more steps...

Step 1.2.2.2.1

Simplify $\frac{2}{π} (\frac{π}{2} + π n)$ .

Tap for more steps...

Step 1.2.2.2.1.1

Apply the distributive property.

$x = \frac{2}{π} \cdot \frac{π}{2} + \frac{2}{π} (π n)$

Step 1.2.2.2.1.2

Cancel the common factor of $2$ .

Tap for more steps...

Step 1.2.2.2.1.2.1

Cancel the common factor.

$x = \frac{2}{π} \cdot \frac{π}{2} + \frac{2}{π} (π n)$

Step 1.2.2.2.1.2.2

Rewrite the expression.

$x = \frac{1}{π} π + \frac{2}{π} (π n)$

Step 1.2.2.2.1.3

Cancel the common factor of $π$ .

Tap for more steps...

Step 1.2.2.2.1.3.1

Cancel the common factor.

$x = \frac{1}{π} π + \frac{2}{π} (π n)$

Step 1.2.2.2.1.3.2

Rewrite the expression.

$x = 1 + \frac{2}{π} (π n)$

Step 1.2.2.2.1.4

Cancel the common factor of $π$ .

Tap for more steps...

Step 1.2.2.2.1.4.1

Factor $π$ out of $π n$ .

$x = 1 + \frac{2}{π} (π (n))$

Step 1.2.2.2.1.4.2

Cancel the common factor.

$x = 1 + \frac{2}{π} (π n)$

Step 1.2.2.2.1.4.3

Rewrite the expression.

$x = 1 + 2 n$

Step 1.2.3

Reorder $1$ and $2 n$ .

$x = 2 n + 1$

Step 1.3

The domain is all values of $x$ that make the expression defined.

Set-Builder Notation:

${x | x \neq 2 n + 1}$ , for any integer $n$

Set-Builder Notation:

${x | x \neq 2 n + 1}$ , for any integer $n$

Step 2

Since the domain is not all real numbers, $\tan (\frac{π x}{2})$ is not continuous over all real numbers.

Not continuous

Step 3