Maximum and Minimum in Trigonometry

In summary, the concept of maximum and minimum in trigonometry refers to the highest and lowest values that a trigonometric function can take within a given interval. To find these values, the first and second derivative tests can be used. The significance of these values lies in their ability to help determine the range of the function and solve real-life optimization problems. While a trigonometric function can have multiple maximum and minimum values, there can only be one absolute maximum and one absolute minimum value in a given interval. These values differ from local and global extrema, which refer to the highest and lowest values within a small interval and the entire domain of the function, respectively.
  • #1
juantheron
247
1

Homework Statement



Find Maximum and Minimum value of

Homework Equations



[tex]\mathbf{f(x) = sin^{2n+1}\; x - cos^{2n+1}\; x}[/tex] and [tex]\mathbf{n\in\mathbb{N}}[/tex]


The Attempt at a Solution



put [tex]\mathbf{n=1, f(x) = sin^3\; x -cos^3\; x}[/tex]\\\\

get [tex]\mathbf{-1\leq f(x)\leq 1}[/tex]
 
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  • #2
welcome to pf!

hi juantheron! welcome to pf! :wink:

are you allowed to use calculus?​
 

Related to Maximum and Minimum in Trigonometry

1. What is the concept of maximum and minimum in trigonometry?

The maximum and minimum in trigonometry refer to the highest and lowest values that a trigonometric function can take within a given interval. They are also known as the extreme values of a function.

2. How do you find the maximum and minimum values of a trigonometric function?

To find the maximum and minimum values of a trigonometric function, you can use the first and second derivative tests. The first derivative test involves finding the critical points of the function and evaluating the sign of the derivative at these points. The second derivative test involves analyzing the concavity of the function at the critical points to determine if they are maximum or minimum values.

3. What is the significance of maximum and minimum values in trigonometry?

The maximum and minimum values of a trigonometric function can help us determine the range of the function and identify the points where the function reaches its highest or lowest value. These values can also be used to solve optimization problems in real-life scenarios.

4. Can a trigonometric function have more than one maximum or minimum value?

Yes, a trigonometric function can have multiple maximum and minimum values within a given interval. These points are known as relative extrema. However, there can only be one absolute maximum value and one absolute minimum value for a function within a given interval.

5. How do maximum and minimum values differ from local and global extrema?

The maximum and minimum values of a function refer to the highest and lowest values within a given interval. Local extrema, on the other hand, refer to the highest and lowest values within a small interval around a specific point on the graph. Global extrema, also known as absolute extrema, refer to the highest and lowest values of a function within its entire domain.

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