Double integrate from cartesian to polar and then evaluated

In summary, double integrating from cartesian to polar and then evaluating is a mathematical process used to simplify the calculation of a double integral by converting it from cartesian coordinates to polar coordinates. This method is commonly used in physics, engineering, and other branches of science to solve problems involving circular or symmetric shapes. However, it may not be as efficient for more complex shapes and can be more difficult to visualize. The steps involved include converting the limits and integrand, and then using polar integration techniques to solve the integral.
  • #1
jimbo71
81
0

Homework Statement


convert double integral from line one to polar integral and then evaluate
see problem 12 attachment



Homework Equations


y=rsinx
x=rcosx
r^2=x^2+y^2



The Attempt at a Solution


see problem 12 attachment
I calculate a area of zero. are my limits wrong and if so which ones, or did i make a mistake in the aritmatic, or something else?
 

Attachments

  • problem 12.jpg
    problem 12.jpg
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  • #2
You start to go wrong at the end of the 5th line. [itex]e^{-1}[/itex] does not equal [itex]e[/itex].
 

Related to Double integrate from cartesian to polar and then evaluated

1. What is "double integrate from cartesian to polar and then evaluated"?

Double integrate from cartesian to polar and then evaluated is a mathematical process that involves converting a double integral from cartesian coordinates to polar coordinates and then solving the integral using the polar coordinate system.

2. What is the purpose of double integrating from cartesian to polar and then evaluating?

The purpose of double integrating from cartesian to polar and then evaluating is to simplify the calculation of a double integral in cases where using polar coordinates may be more convenient or efficient.

3. What are the steps involved in double integrating from cartesian to polar and then evaluating?

The steps involved in double integrating from cartesian to polar and then evaluating are: 1. Convert the limits of integration from cartesian coordinates to polar coordinates.2. Convert the integrand function from cartesian to polar coordinates.3. Rewrite the double integral using the new limits and integrand.4. Solve the integral using polar integration techniques.

4. What are some common applications of double integrating from cartesian to polar and then evaluating?

Some common applications of double integrating from cartesian to polar and then evaluating include solving problems in physics, such as calculating the electric field of a charged disk or the gravitational potential energy of a ring. It is also frequently used in engineering and other branches of science to solve problems involving circular or symmetric shapes.

5. Are there any limitations to using double integration from cartesian to polar and then evaluating?

Yes, there are some limitations to using double integration from cartesian to polar and then evaluating. This method is only applicable for problems that involve circular or symmetric shapes and may not be as efficient for more complex shapes. Additionally, it may be more difficult to visualize the problem in polar coordinates compared to cartesian coordinates.

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