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Integration of two exponential multiplied by each other

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Integration of two exponential multiplied by each other


Integrating $sin^2(x)$ using imaginary numbers.Need help with integration by partsIntegrate $int frac{ln(sin x)}{sin^2 x},mathrm dx.$Integral $int frac{sqrt{16-x^2}}{x} mathrm{d}x$Solid Angle IntegrationDouble Integral of an Exponential Function with an Absolute Value in the Numerator of the ExponentComplex integral with exponential and tangentShow the value of an integral using integration by parts.How to calculate $int xe^{1/x^2} dx$How to integrate $int 2xe^{x^2-y^2}cos(2xy)- 2ye^{x^2-y^2}sin(2xy) mathrm dy$?













3












$begingroup$


I am having confusion on how to go about integrating this integral:



$$int[exp( jcdotphicdot x)cdot exp(jcdot kcdot xcdot sin theta)] mathrm dx.$$



I attempted by using integration by parts but that didn't work.










share|cite|improve this question











$endgroup$












  • $begingroup$
    This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
    $endgroup$
    – Gus
    3 hours ago
















3












$begingroup$


I am having confusion on how to go about integrating this integral:



$$int[exp( jcdotphicdot x)cdot exp(jcdot kcdot xcdot sin theta)] mathrm dx.$$



I attempted by using integration by parts but that didn't work.










share|cite|improve this question











$endgroup$












  • $begingroup$
    This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
    $endgroup$
    – Gus
    3 hours ago














3












3








3





$begingroup$


I am having confusion on how to go about integrating this integral:



$$int[exp( jcdotphicdot x)cdot exp(jcdot kcdot xcdot sin theta)] mathrm dx.$$



I attempted by using integration by parts but that didn't work.










share|cite|improve this question











$endgroup$




I am having confusion on how to go about integrating this integral:



$$int[exp( jcdotphicdot x)cdot exp(jcdot kcdot xcdot sin theta)] mathrm dx.$$



I attempted by using integration by parts but that didn't work.







integration






share|cite|improve this question















share|cite|improve this question













share|cite|improve this question




share|cite|improve this question








edited 5 hours ago









Thomas Shelby

3,6642525




3,6642525










asked 5 hours ago









articatarticat

213




213












  • $begingroup$
    This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
    $endgroup$
    – Gus
    3 hours ago


















  • $begingroup$
    This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
    $endgroup$
    – Gus
    3 hours ago
















$begingroup$
This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
$endgroup$
– Gus
3 hours ago




$begingroup$
This is a bit off-topic, but you might have encountered problems, with integrands like exp(x) * sin(x) where you needed to do two rounds of integration by parts. Using complex exponentials lets you avoid integration by parts in those problems by putting everything in one exponential.
$endgroup$
– Gus
3 hours ago










2 Answers
2






active

oldest

votes


















6












$begingroup$

Recall that $e^acdot e^b=e^{a+b} $. So we can write $$intexp( jcdotphicdot x)cdot exp(jcdot kcdot xcdotsin theta) mathrm dx=intexpleft(( jcdot phi+jcdot kcdotsin theta)xright) mathrm dx=dfrac1 { jcdotphi+jcdot kcdotsin theta}expleft(( jcdot phi+jcdot kcdotsin theta)xright).$$






share|cite|improve this answer











$endgroup$





















    3












    $begingroup$

    Hint: exponentiation rules. $$exp(acdot x)cdotexp(bcdot x)=exp((a+b)cdot x)$$






    share|cite|improve this answer









    $endgroup$













    • $begingroup$
      exponentiation rules - yes it does
      $endgroup$
      – qwr
      11 mins ago











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    2 Answers
    2






    active

    oldest

    votes








    2 Answers
    2






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    6












    $begingroup$

    Recall that $e^acdot e^b=e^{a+b} $. So we can write $$intexp( jcdotphicdot x)cdot exp(jcdot kcdot xcdotsin theta) mathrm dx=intexpleft(( jcdot phi+jcdot kcdotsin theta)xright) mathrm dx=dfrac1 { jcdotphi+jcdot kcdotsin theta}expleft(( jcdot phi+jcdot kcdotsin theta)xright).$$






    share|cite|improve this answer











    $endgroup$


















      6












      $begingroup$

      Recall that $e^acdot e^b=e^{a+b} $. So we can write $$intexp( jcdotphicdot x)cdot exp(jcdot kcdot xcdotsin theta) mathrm dx=intexpleft(( jcdot phi+jcdot kcdotsin theta)xright) mathrm dx=dfrac1 { jcdotphi+jcdot kcdotsin theta}expleft(( jcdot phi+jcdot kcdotsin theta)xright).$$






      share|cite|improve this answer











      $endgroup$
















        6












        6








        6





        $begingroup$

        Recall that $e^acdot e^b=e^{a+b} $. So we can write $$intexp( jcdotphicdot x)cdot exp(jcdot kcdot xcdotsin theta) mathrm dx=intexpleft(( jcdot phi+jcdot kcdotsin theta)xright) mathrm dx=dfrac1 { jcdotphi+jcdot kcdotsin theta}expleft(( jcdot phi+jcdot kcdotsin theta)xright).$$






        share|cite|improve this answer











        $endgroup$



        Recall that $e^acdot e^b=e^{a+b} $. So we can write $$intexp( jcdotphicdot x)cdot exp(jcdot kcdot xcdotsin theta) mathrm dx=intexpleft(( jcdot phi+jcdot kcdotsin theta)xright) mathrm dx=dfrac1 { jcdotphi+jcdot kcdotsin theta}expleft(( jcdot phi+jcdot kcdotsin theta)xright).$$







        share|cite|improve this answer














        share|cite|improve this answer



        share|cite|improve this answer








        edited 5 hours ago

























        answered 5 hours ago









        Thomas ShelbyThomas Shelby

        3,6642525




        3,6642525























            3












            $begingroup$

            Hint: exponentiation rules. $$exp(acdot x)cdotexp(bcdot x)=exp((a+b)cdot x)$$






            share|cite|improve this answer









            $endgroup$













            • $begingroup$
              exponentiation rules - yes it does
              $endgroup$
              – qwr
              11 mins ago
















            3












            $begingroup$

            Hint: exponentiation rules. $$exp(acdot x)cdotexp(bcdot x)=exp((a+b)cdot x)$$






            share|cite|improve this answer









            $endgroup$













            • $begingroup$
              exponentiation rules - yes it does
              $endgroup$
              – qwr
              11 mins ago














            3












            3








            3





            $begingroup$

            Hint: exponentiation rules. $$exp(acdot x)cdotexp(bcdot x)=exp((a+b)cdot x)$$






            share|cite|improve this answer









            $endgroup$



            Hint: exponentiation rules. $$exp(acdot x)cdotexp(bcdot x)=exp((a+b)cdot x)$$







            share|cite|improve this answer












            share|cite|improve this answer



            share|cite|improve this answer










            answered 5 hours ago









            Graham KempGraham Kemp

            86.1k43478




            86.1k43478












            • $begingroup$
              exponentiation rules - yes it does
              $endgroup$
              – qwr
              11 mins ago


















            • $begingroup$
              exponentiation rules - yes it does
              $endgroup$
              – qwr
              11 mins ago
















            $begingroup$
            exponentiation rules - yes it does
            $endgroup$
            – qwr
            11 mins ago




            $begingroup$
            exponentiation rules - yes it does
            $endgroup$
            – qwr
            11 mins ago


















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