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Calcul infinitésimal Exemples

$f (x) = \frac{1}{x}$ , $[1, 6]$

Step 1

To find whether the function is continuous on $[1, 6]$ or not, find the domain of $f (x) = \frac{1}{x}$ .

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Step 1.1

Set the denominator in $\frac{1}{x}$ equal to $0$ to find where the expression is undefined.

$x = 0$

Step 1.2

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

Interval Notation:

$(- \infty, 0) \cup (0, \infty)$

Set-Builder Notation:

${x | x \neq 0}$

Interval Notation:

$(- \infty, 0) \cup (0, \infty)$

Set-Builder Notation:

${x | x \neq 0}$

Step 2

$f (x)$ is continuous on $[1, 6]$ .

The function is continuous.

Step 3

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