Podcast
Questions and Answers
What condition must be satisfied for a value f(c) to be classified as a local maximum?
What condition must be satisfied for a value f(c) to be classified as a local maximum?
How is an absolute minimum defined in relation to local minima?
How is an absolute minimum defined in relation to local minima?
In the context of extreme values, what distinguishes an absolute maximum from a local maximum?
In the context of extreme values, what distinguishes an absolute maximum from a local maximum?
Which statement is true regarding local and absolute minima?
Which statement is true regarding local and absolute minima?
Signup and view all the answers
What property does a local minimum at point c indicate about the function values nearby?
What property does a local minimum at point c indicate about the function values nearby?
Signup and view all the answers
When identifying extreme values, what is a critical point for a continuous function?
When identifying extreme values, what is a critical point for a continuous function?
Signup and view all the answers
Why might a function have an absolute maximum at a point that is not a local maximum?
Why might a function have an absolute maximum at a point that is not a local maximum?
Signup and view all the answers
Which of the following statements about extreme values is false?
Which of the following statements about extreme values is false?
Signup and view all the answers
What is the maximum value of the function f(x) = ln(x/(1 + x^2))?
What is the maximum value of the function f(x) = ln(x/(1 + x^2))?
Signup and view all the answers
At which points does the function f(x) have extreme values due to its even nature?
At which points does the function f(x) have extreme values due to its even nature?
Signup and view all the answers
What is the value of x where the function f(x) = ln(x/(1 + x^2)) has a minimum value?
What is the value of x where the function f(x) = ln(x/(1 + x^2)) has a minimum value?
Signup and view all the answers
Which of the following is a critical point of the function f(x) = ln(x/(1 + x^2))?
Which of the following is a critical point of the function f(x) = ln(x/(1 + x^2))?
Signup and view all the answers
What does the derivative f'(x) = (1 - x^2)/(x(1 + x^2)) indicate about the function's behavior?
What does the derivative f'(x) = (1 - x^2)/(x(1 + x^2)) indicate about the function's behavior?
Signup and view all the answers
Which statement about the extreme values of the function derived graphically is true?
Which statement about the extreme values of the function derived graphically is true?
Signup and view all the answers
How is it confirmed analytically that f(x) = ln(x/(1 + x^2)) has extreme values?
How is it confirmed analytically that f(x) = ln(x/(1 + x^2)) has extreme values?
Signup and view all the answers
What does the function f(x) = ln(x/(1 + x^2)) lead to in terms of its domain?
What does the function f(x) = ln(x/(1 + x^2)) lead to in terms of its domain?
Signup and view all the answers
What is the nature of the critical point at x = 0 for the function f(x)?
What is the nature of the critical point at x = 0 for the function f(x)?
Signup and view all the answers
What must be true for the Extreme Value Theorem to guarantee extreme points?
What must be true for the Extreme Value Theorem to guarantee extreme points?
Signup and view all the answers
Which of the following statements about the function f(x) is true?
Which of the following statements about the function f(x) is true?
Signup and view all the answers
How does the function f(x) behave as x moves away from the critical point?
How does the function f(x) behave as x moves away from the critical point?
Signup and view all the answers
What is the derivative f¿(x) at the critical point x = 0?
What is the derivative f¿(x) at the critical point x = 0?
Signup and view all the answers
Why can the function f(x) be confirmed to have a minimum at x = 0?
Why can the function f(x) be confirmed to have a minimum at x = 0?
Signup and view all the answers
What happens to the function f(x) when x is in the interval (-2, 2)?
What happens to the function f(x) when x is in the interval (-2, 2)?
Signup and view all the answers
Which phrase best describes the behavior of f(x) near its critical point?
Which phrase best describes the behavior of f(x) near its critical point?
Signup and view all the answers
Study Notes
Local and Absolute Extreme Values
- Absolute maximum is the greatest value of a function on an interval and is also a local maximum
- Local maximum is the greatest value of a function in a neighborhood
- Absolute minimum is the smallest value of a function on an interval and is also a local minimum
- Local minimum is the smallest value of a function in a neighborhood
Finding Extreme Values
- Extreme values are the maximum and minimum values of a function within the domain of the function
- Local extreme values can be found using a function's derivative
- To find local extreme values find the critical points of a function, where the derivative is 0 or undefined, or where it does not exist
- Absolute extreme values can be found using a function's derivative or by graphing it
- When considering absolute extreme values the closed interval of a function's domain must be considered
- If the interval is open, the function may have local extreme values but not absolute extreme values
- If the interval is closed, the function will absolutely have absolute extreme values
Finding Minimum And Maximum for f(x) = ln(1/1+x^2)
- The function is even and has a domain of all non-zero real numbers
- The function has maximum values at points close to x = 1 and x = -1
- The values of the function at x = 1 and x = -1 are both about -0.69
- The derivative of the function is (1-x^2)/(x(1+x^2))
- The derivative is not defined at x = 0
- The critical points of the function are at x = 1 and x = -1 where the derivative is equal to 0
- The function does not have an absolute minimum value
- The function has a relative minimum at x = 0
Finding Minimum And Maximum for f(x) = 1/(24-x^2)
- The domain of the function is -2 ≤ x ≤ 2
- The only critical point within the domain is x = 0, where the derivative is equal to 0
- The value of the function at x = 0 is 1/24
- The function has a minimum value at x = 0 and the minimum is absolute
- The function does not have any maxima, either local or absolute
- This is because the function is defined on an open interval and not a closed interval, and a closed interval is needed for the function to have absolute extreme values
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
This quiz covers the concepts of local and absolute extreme values in calculus. It focuses on how to identify maximum and minimum values of functions using derivatives and critical points. Understand how to distinguish between local and absolute extrema within different intervals.
