Calculus Examples

$lim_{z \to - 1} \frac{z^{2} - 1}{z^{2} - 1}$

Step 1

Cancel the common factor of $z^{2} - 1$ .

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Step 1.1

Cancel the common factor.

$lim_{z \to - 1} \frac{z^{2} - 1}{z^{2} - 1}$

Step 1.2

Rewrite the expression.

$lim_{z \to - 1} 1$

Step 2

Evaluate the limit of $1$ which is constant as $z$ approaches $- 1$ .

$1$