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How to Prove that a Function is Always Increasing or Decreasing
In this video, I will teach you how you can show that a function is always increasing or decreasing. To do this I will take you through the theory and show you two fully worked examples that explain how to prove whether a function is increasing or decreasing using the first derivative test.
![ALevel Maths: G310 [Gradients: Where Functions are Increasing and Decreasing]](https://i.ytimg.com/vi/yjAmwRP-Dkw/mqdefault.jpg)
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