Sometimes, searching for formulas can be frustrating, hence, having a formula sheet helps you in solving problem easily. Instead of searching a single formula, you can easily look up formulas written on a separate page. That is why we came up with this idea to save your time and effort. Below are the formulas related to solving the continuity of functions.
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Continuous Function at a Point
Directional Continuity
Left-continuous function
Right-continuous function
Discontinuity
Removable Discontinuity
Jump Discontinuity
Essential Discontinuity

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what will be sign of -infinity is to power infinity plus or minus
The sign **cannot be determined**.
For a negative base:
* **Even exponent** → **positive**
* **Odd exponent** → **negative**
So as the exponent tends to infinity, the sign depends on whether the exponent is even or odd. Therefore, ((-\infty)^\infty) has **no definite sign**—it can be **positive or negative**.