A local extremum is not necessarily a global extremum. A local extremum is a point where the function reaches a maximum or minimum value within a small neighborhood, but it may not be the highest or lowest point in the entire function. A global extremum, on the other hand, is the highest or lowest point in the entire function. Therefore, a local extremum may or may not be a global extremum, depending on the behavior of the function in the larger context. **

Extremum problems are mathematical problems that involve finding the maximum or minimum value of a function. These problems typically involve optimizing a certain quantity, such as maximizing profit or minimizing cost. Extremum problems are commonly encountered in various fields such as economics, engineering, and physics, where finding the optimal solution is crucial for decision-making and problem-solving. The process of solving extremum problems often involves using calculus techniques such as differentiation to find critical points where the function reaches its maximum or minimum value. **

No, not all global extremum points are also local extremum points of polynomial functions. Global extremum points are the highest or lowest points on the entire function, while local extremum points are the highest or lowest points within a specific interval. A polynomial function can have global extremum points that are not local extremum points if the function continues to increase or decrease beyond the local extremum point. **

A global extremum is the highest or lowest value of a function over its entire domain. For a function with a global maximum, there is no other point in the domain where the function takes a higher value. Similarly, for a function with a global minimum, there is no other point in the domain where the function takes a lower value. Global extrema are important in optimization problems and can provide valuable information about the behavior of a function. **

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Extremum problems involve finding the maximum or minimum value of a function, typically subject to certain constraints. These problems are commonly encountered in various fields such as mathematics, economics, engineering, and physics. Modeling, on the other hand, involves creating a simplified representation of a real-world system or phenomenon using mathematical equations or algorithms. Extremum problems are often used in modeling to optimize or find the best solution to a given problem by determining the extremum values of the model's objective function. **

Extremum problems in mathematics involve finding the maximum or minimum value of a function. These problems are often solved by taking the derivative of the function and setting it equal to zero to find critical points. By analyzing these critical points and the endpoints of the interval, one can determine the maximum or minimum value of the function. Extremum problems are commonly encountered in optimization, physics, economics, and engineering. **