Precalculus Examples

$(1, - 2)$ , $(1, - 1)$

Step 1

Since $x = 1$ produces $y = - 2$ and $y = - 1$ , the relation $(1, - 2), (1, - 1)$ is not a function.

The relation is not a function.

Step 2

The relation $(1, - 2), (1, - 1)$ is not a function, so there is no inverse can be found.

No inverse can be found

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