solution to integral equation and conic sections Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Integral using Euler's substitutionGeometrically Integrating $R(x,sqrtAx^2+Bx+C)$ & Motivating Euler SubstitutionsEvaluate Indefinite IntegralIntegral SolutionShowing that the integral of one equation yields another.$ax^2+by^2+2gx+2fy+2hxy+c=0$ : Understanding the equationSolve the integral $ intfracx-sqrtx^2-5x+6x+sqrtx^2+5x+6dx $Find the value of this indefinite integral.Relationship between parabolas and hyperbolasFind the area above the $x-$ axis included between the parabola $y^2=ax$ and the circle $x^2+y^2=2ax$.

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solution to integral equation and conic sections



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)Integral using Euler's substitutionGeometrically Integrating $R(x,sqrtAx^2+Bx+C)$ & Motivating Euler SubstitutionsEvaluate Indefinite IntegralIntegral SolutionShowing that the integral of one equation yields another.$ax^2+by^2+2gx+2fy+2hxy+c=0$ : Understanding the equationSolve the integral $ intfracx-sqrtx^2-5x+6x+sqrtx^2+5x+6dx $Find the value of this indefinite integral.Relationship between parabolas and hyperbolasFind the area above the $x-$ axis included between the parabola $y^2=ax$ and the circle $x^2+y^2=2ax$.










0












$begingroup$


I am trying to understand an integral equation by Euler (English translation of his writings can be found on page 7). A complete background of the problem in physics is problably not necessary, the problem asked is just about mathematics.



Euler considers a force with component functions $X(x)$ and $Y(y)$ and arrives at some point at the equation.



$$ int fracdysqrtB - int Y dy = int fracdxsqrtC- int X dx$$



He then says that when we take functions $X$ and $Y$ which are powers of $x$, we get an equation of the form



$$ int fracdysqrtb^n - y^n = int fracdxsqrta^n - x^n$$



Finally he concludes that




if $n=1$, gives a parabola, $n=2$ an ellipse having centre at C, and yet in this case each integration requires the quadrature of the circle.




  • How can I obtain this conclusion mathematically and solve the integral equation? I was able to solve part of the integral, but was unable to deduce the equation of the parabola or ellipse.


  • More generally, since it a known result in physics that inverse-square force correspond to orbits which are conic section, shouldn't one find also other solutions (hyperbola)?










share|cite|improve this question











$endgroup$
















    0












    $begingroup$


    I am trying to understand an integral equation by Euler (English translation of his writings can be found on page 7). A complete background of the problem in physics is problably not necessary, the problem asked is just about mathematics.



    Euler considers a force with component functions $X(x)$ and $Y(y)$ and arrives at some point at the equation.



    $$ int fracdysqrtB - int Y dy = int fracdxsqrtC- int X dx$$



    He then says that when we take functions $X$ and $Y$ which are powers of $x$, we get an equation of the form



    $$ int fracdysqrtb^n - y^n = int fracdxsqrta^n - x^n$$



    Finally he concludes that




    if $n=1$, gives a parabola, $n=2$ an ellipse having centre at C, and yet in this case each integration requires the quadrature of the circle.




    • How can I obtain this conclusion mathematically and solve the integral equation? I was able to solve part of the integral, but was unable to deduce the equation of the parabola or ellipse.


    • More generally, since it a known result in physics that inverse-square force correspond to orbits which are conic section, shouldn't one find also other solutions (hyperbola)?










    share|cite|improve this question











    $endgroup$














      0












      0








      0





      $begingroup$


      I am trying to understand an integral equation by Euler (English translation of his writings can be found on page 7). A complete background of the problem in physics is problably not necessary, the problem asked is just about mathematics.



      Euler considers a force with component functions $X(x)$ and $Y(y)$ and arrives at some point at the equation.



      $$ int fracdysqrtB - int Y dy = int fracdxsqrtC- int X dx$$



      He then says that when we take functions $X$ and $Y$ which are powers of $x$, we get an equation of the form



      $$ int fracdysqrtb^n - y^n = int fracdxsqrta^n - x^n$$



      Finally he concludes that




      if $n=1$, gives a parabola, $n=2$ an ellipse having centre at C, and yet in this case each integration requires the quadrature of the circle.




      • How can I obtain this conclusion mathematically and solve the integral equation? I was able to solve part of the integral, but was unable to deduce the equation of the parabola or ellipse.


      • More generally, since it a known result in physics that inverse-square force correspond to orbits which are conic section, shouldn't one find also other solutions (hyperbola)?










      share|cite|improve this question











      $endgroup$




      I am trying to understand an integral equation by Euler (English translation of his writings can be found on page 7). A complete background of the problem in physics is problably not necessary, the problem asked is just about mathematics.



      Euler considers a force with component functions $X(x)$ and $Y(y)$ and arrives at some point at the equation.



      $$ int fracdysqrtB - int Y dy = int fracdxsqrtC- int X dx$$



      He then says that when we take functions $X$ and $Y$ which are powers of $x$, we get an equation of the form



      $$ int fracdysqrtb^n - y^n = int fracdxsqrta^n - x^n$$



      Finally he concludes that




      if $n=1$, gives a parabola, $n=2$ an ellipse having centre at C, and yet in this case each integration requires the quadrature of the circle.




      • How can I obtain this conclusion mathematically and solve the integral equation? I was able to solve part of the integral, but was unable to deduce the equation of the parabola or ellipse.


      • More generally, since it a known result in physics that inverse-square force correspond to orbits which are conic section, shouldn't one find also other solutions (hyperbola)?







      calculus integration derivatives physics indefinite-integrals






      share|cite|improve this question















      share|cite|improve this question













      share|cite|improve this question




      share|cite|improve this question








      edited Mar 26 at 17:03







      vromo94

















      asked Mar 26 at 16:52









      vromo94vromo94

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