Calculus optimization problem

In summary, the area of the largest rectangle that can be inscribed inside a semicircle with radius r is A = r^2. This can be found by setting one side of the rectangle as x = r / SQRT(2) and solving for the area using the formula A = hw. Alternatively, one can also find the area by expressing one side of the rectangle as a function of the other side, such as h = SQRT(r^2 - w^2) or w = SQRT(r^2 - h^2).
  • #1
thegame
32
0
What is the area of the largest rectangle that can be inscribes indiside a semicircle with the radius r?

answer: x = r / SQRT(2)
A = r^2
 
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  • #2
Is there a question here?
 
  • #3
How do you ge the answer?
 
  • #4
How did YOU get the answer?
 
  • #5
Well, if you know one side of a rectangle inscribed in a semicircle, can you figure out the other side?
 
  • #6
What Hurkyl's getting at is:

Draw the semicircle. Draw a rectangle inside it, call one side h, call the other side w, call the radius r.

Now find a relationship that let's you eliminate either h or w. In other words, express h as a function of w, or w as a function of h.
 

What is a calculus optimization problem?

A calculus optimization problem is a type of mathematical problem that involves finding the maximum or minimum value of a function, subject to certain constraints. It is used to solve real-world problems in fields such as economics, physics, and engineering.

What is the difference between a maximum and minimum value in calculus optimization?

A maximum value is the highest point on a curve or surface, while a minimum value is the lowest point. In calculus optimization, finding these values is important because they represent the optimal solution to a problem.

How do you solve a calculus optimization problem?

To solve a calculus optimization problem, you first need to identify the function that needs to be optimized and the constraints that need to be met. Then, you can use calculus techniques such as derivatives and critical points to find the maximum or minimum value of the function.

What are some common real-world applications of calculus optimization?

Calculus optimization is used in many fields, such as economics (to maximize profit), physics (to minimize energy), and engineering (to optimize design). It can also be applied to everyday problems, such as finding the most efficient route to travel or the optimal amount of ingredients to use in a recipe.

What are some tips for solving calculus optimization problems?

Some tips for solving calculus optimization problems include clearly defining the problem, drawing a graph to visualize the function and constraints, and considering all possible solutions. It is also important to check for any mistakes in the calculations and to clearly state the final answer with appropriate units.

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