Limits can also be evaluated as 'x' approaches from more positive values (from the right). This is shown by a plus sign next to the constant in the limit statement.
$\underset{x\to {c}^{+}}{lim}\mathrm{f\left(x\right)}$
In this example, we evaluate
$\underset{x\to {0}^{+}}{lim}\left(\frac{1}{{x}^{2}}-\frac{1}{{x}^{3}}\right)$
Infinite Limits as X Approaches from Right

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