...a Function
Theorem 2 says that if a function has a first derivative at an interior point where there is a local extremum, then the derivative must equal zero at that point. It does not say that every point where the first derivative equals zero must be a local extremum. Because of Theorem 2, on... https://education.ti.com/en/product-resources/t3-free-courses/calculus84-online/mod13/mod13-lesson1
...ums. In this lesson you will use these features and compare results with local extrema found in previous lessons. Although these features are usually quite accurate, you should remember they give numerical approximations, not exact values.
In Lesson 13.2 and Lesson 13.3 you found local extrema ... https://education.ti.com/en/product-resources/t3-free-courses/calculus84-online/mod13/mod13-lesson4
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