Using spherical coordinates for triple integral The Next CEO of Stack OverflowConverting from Cartesian coordinates to Spherical coordinatesTriple integral using spherical coordinatesFinding the Limits of the Triple Integral (Spherical Coordinates)Triple Integral in Spherical Coordinates.Evluating triple integrals via Spherical coordinatesTriple Integral with Spherical Polar Coordinates ProblemTriple Integral in Spherical CoordinatesUse Spherical Coordinates to Evaluate the Triple IntegralSpherical coordinates to calculate triple integralTriple integral using spherical coordinates ($theta$ variation)

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Using spherical coordinates for triple integral



The Next CEO of Stack OverflowConverting from Cartesian coordinates to Spherical coordinatesTriple integral using spherical coordinatesFinding the Limits of the Triple Integral (Spherical Coordinates)Triple Integral in Spherical Coordinates.Evluating triple integrals via Spherical coordinatesTriple Integral with Spherical Polar Coordinates ProblemTriple Integral in Spherical CoordinatesUse Spherical Coordinates to Evaluate the Triple IntegralSpherical coordinates to calculate triple integralTriple integral using spherical coordinates ($theta$ variation)










1












$begingroup$


$ int_0^3 int_0^sqrt9-x^2 int_0^sqrt9-x^2-y^2 fracsqrtx^2+y^2+z^21+x^2+y^2+z^2 dz dy dx$



Using spherical co-ord's this becomes :



$ int_0^2pi int_0^pi int_0^3 fracr^3sin(theta)1+r^2 dr dtheta dphi $



Is this correct? If it is how do I carry on from here?










share|cite|improve this question











$endgroup$
















    1












    $begingroup$


    $ int_0^3 int_0^sqrt9-x^2 int_0^sqrt9-x^2-y^2 fracsqrtx^2+y^2+z^21+x^2+y^2+z^2 dz dy dx$



    Using spherical co-ord's this becomes :



    $ int_0^2pi int_0^pi int_0^3 fracr^3sin(theta)1+r^2 dr dtheta dphi $



    Is this correct? If it is how do I carry on from here?










    share|cite|improve this question











    $endgroup$














      1












      1








      1





      $begingroup$


      $ int_0^3 int_0^sqrt9-x^2 int_0^sqrt9-x^2-y^2 fracsqrtx^2+y^2+z^21+x^2+y^2+z^2 dz dy dx$



      Using spherical co-ord's this becomes :



      $ int_0^2pi int_0^pi int_0^3 fracr^3sin(theta)1+r^2 dr dtheta dphi $



      Is this correct? If it is how do I carry on from here?










      share|cite|improve this question











      $endgroup$




      $ int_0^3 int_0^sqrt9-x^2 int_0^sqrt9-x^2-y^2 fracsqrtx^2+y^2+z^21+x^2+y^2+z^2 dz dy dx$



      Using spherical co-ord's this becomes :



      $ int_0^2pi int_0^pi int_0^3 fracr^3sin(theta)1+r^2 dr dtheta dphi $



      Is this correct? If it is how do I carry on from here?







      integration multivariable-calculus spherical-coordinates






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Mar 19 at 13:02









      José Carlos Santos

      171k23132240




      171k23132240










      asked Mar 19 at 11:49









      Elliot SilverElliot Silver

      406




      406




















          2 Answers
          2






          active

          oldest

          votes


















          1












          $begingroup$

          Your limits aren't quite correct. The spherical region you are integrating over is only in the first octant. Therefore $theta$ should range from 0 to $pi/2$ and $phi$ should range from $0$ to $pi/2$.






          share|cite|improve this answer









          $endgroup$












          • $begingroup$
            Thanks, how can i show this using the given limits?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:01










          • $begingroup$
            Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
            $endgroup$
            – Spencer
            Mar 19 at 13:06











          • $begingroup$
            I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:15






          • 1




            $begingroup$
            That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
            $endgroup$
            – Spencer
            Mar 19 at 13:17


















          1












          $begingroup$

          It looks fine to me, except for the limits of integration. The next step is to write it as$$fracpi2left(int_0^fracpi2sin(theta),mathrm dthetaright)left(int_0^3fracr^31+r^2,mathrm drright).$$






          share|cite|improve this answer











          $endgroup$












          • $begingroup$
            I was just wondering if the limits for the spherical were correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 12:57






          • 1




            $begingroup$
            No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
            $endgroup$
            – José Carlos Santos
            Mar 19 at 13:01











          Your Answer





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          2 Answers
          2






          active

          oldest

          votes








          2 Answers
          2






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1












          $begingroup$

          Your limits aren't quite correct. The spherical region you are integrating over is only in the first octant. Therefore $theta$ should range from 0 to $pi/2$ and $phi$ should range from $0$ to $pi/2$.






          share|cite|improve this answer









          $endgroup$












          • $begingroup$
            Thanks, how can i show this using the given limits?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:01










          • $begingroup$
            Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
            $endgroup$
            – Spencer
            Mar 19 at 13:06











          • $begingroup$
            I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:15






          • 1




            $begingroup$
            That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
            $endgroup$
            – Spencer
            Mar 19 at 13:17















          1












          $begingroup$

          Your limits aren't quite correct. The spherical region you are integrating over is only in the first octant. Therefore $theta$ should range from 0 to $pi/2$ and $phi$ should range from $0$ to $pi/2$.






          share|cite|improve this answer









          $endgroup$












          • $begingroup$
            Thanks, how can i show this using the given limits?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:01










          • $begingroup$
            Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
            $endgroup$
            – Spencer
            Mar 19 at 13:06











          • $begingroup$
            I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:15






          • 1




            $begingroup$
            That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
            $endgroup$
            – Spencer
            Mar 19 at 13:17













          1












          1








          1





          $begingroup$

          Your limits aren't quite correct. The spherical region you are integrating over is only in the first octant. Therefore $theta$ should range from 0 to $pi/2$ and $phi$ should range from $0$ to $pi/2$.






          share|cite|improve this answer









          $endgroup$



          Your limits aren't quite correct. The spherical region you are integrating over is only in the first octant. Therefore $theta$ should range from 0 to $pi/2$ and $phi$ should range from $0$ to $pi/2$.







          share|cite|improve this answer












          share|cite|improve this answer



          share|cite|improve this answer










          answered Mar 19 at 12:59









          SpencerSpencer

          8,67012056




          8,67012056











          • $begingroup$
            Thanks, how can i show this using the given limits?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:01










          • $begingroup$
            Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
            $endgroup$
            – Spencer
            Mar 19 at 13:06











          • $begingroup$
            I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:15






          • 1




            $begingroup$
            That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
            $endgroup$
            – Spencer
            Mar 19 at 13:17
















          • $begingroup$
            Thanks, how can i show this using the given limits?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:01










          • $begingroup$
            Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
            $endgroup$
            – Spencer
            Mar 19 at 13:06











          • $begingroup$
            I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 13:15






          • 1




            $begingroup$
            That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
            $endgroup$
            – Spencer
            Mar 19 at 13:17















          $begingroup$
          Thanks, how can i show this using the given limits?
          $endgroup$
          – Elliot Silver
          Mar 19 at 13:01




          $begingroup$
          Thanks, how can i show this using the given limits?
          $endgroup$
          – Elliot Silver
          Mar 19 at 13:01












          $begingroup$
          Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
          $endgroup$
          – Spencer
          Mar 19 at 13:06





          $begingroup$
          Do you mean how can you compute the integral now? Or do you mean how do you show that the limits on the angles are from $0$ to $pi/2$?
          $endgroup$
          – Spencer
          Mar 19 at 13:06













          $begingroup$
          I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
          $endgroup$
          – Elliot Silver
          Mar 19 at 13:15




          $begingroup$
          I've figured out how to get the limits now thank you, the integral i got in the end was pi/4( 9-ln(10)), could you tell me if this is correct?
          $endgroup$
          – Elliot Silver
          Mar 19 at 13:15




          1




          1




          $begingroup$
          That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
          $endgroup$
          – Spencer
          Mar 19 at 13:17




          $begingroup$
          That looks right to me. At this point you should probably accept the answer by José Carlos Santos.
          $endgroup$
          – Spencer
          Mar 19 at 13:17











          1












          $begingroup$

          It looks fine to me, except for the limits of integration. The next step is to write it as$$fracpi2left(int_0^fracpi2sin(theta),mathrm dthetaright)left(int_0^3fracr^31+r^2,mathrm drright).$$






          share|cite|improve this answer











          $endgroup$












          • $begingroup$
            I was just wondering if the limits for the spherical were correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 12:57






          • 1




            $begingroup$
            No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
            $endgroup$
            – José Carlos Santos
            Mar 19 at 13:01















          1












          $begingroup$

          It looks fine to me, except for the limits of integration. The next step is to write it as$$fracpi2left(int_0^fracpi2sin(theta),mathrm dthetaright)left(int_0^3fracr^31+r^2,mathrm drright).$$






          share|cite|improve this answer











          $endgroup$












          • $begingroup$
            I was just wondering if the limits for the spherical were correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 12:57






          • 1




            $begingroup$
            No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
            $endgroup$
            – José Carlos Santos
            Mar 19 at 13:01













          1












          1








          1





          $begingroup$

          It looks fine to me, except for the limits of integration. The next step is to write it as$$fracpi2left(int_0^fracpi2sin(theta),mathrm dthetaright)left(int_0^3fracr^31+r^2,mathrm drright).$$






          share|cite|improve this answer











          $endgroup$



          It looks fine to me, except for the limits of integration. The next step is to write it as$$fracpi2left(int_0^fracpi2sin(theta),mathrm dthetaright)left(int_0^3fracr^31+r^2,mathrm drright).$$







          share|cite|improve this answer














          share|cite|improve this answer



          share|cite|improve this answer








          edited Mar 19 at 13:02

























          answered Mar 19 at 11:55









          José Carlos SantosJosé Carlos Santos

          171k23132240




          171k23132240











          • $begingroup$
            I was just wondering if the limits for the spherical were correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 12:57






          • 1




            $begingroup$
            No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
            $endgroup$
            – José Carlos Santos
            Mar 19 at 13:01
















          • $begingroup$
            I was just wondering if the limits for the spherical were correct?
            $endgroup$
            – Elliot Silver
            Mar 19 at 12:57






          • 1




            $begingroup$
            No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
            $endgroup$
            – José Carlos Santos
            Mar 19 at 13:01















          $begingroup$
          I was just wondering if the limits for the spherical were correct?
          $endgroup$
          – Elliot Silver
          Mar 19 at 12:57




          $begingroup$
          I was just wondering if the limits for the spherical were correct?
          $endgroup$
          – Elliot Silver
          Mar 19 at 12:57




          1




          1




          $begingroup$
          No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
          $endgroup$
          – José Carlos Santos
          Mar 19 at 13:01




          $begingroup$
          No. I did not notice that you are working on the first octant only. Therefore, both $phi$ and $theta$ shoulg go only from $0$ to $fracpi2$. I shall edit my answer.
          $endgroup$
          – José Carlos Santos
          Mar 19 at 13:01

















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