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Thursday, April 16, 2015

Separation of Variables, 44

Category: Differential Equations

"Published in Newark, California, USA"

Find the general solution for


Solution:

Consider the given equation above  


Divide both sides of the equation by a² - x² as follows 




Integrate on both sides of the equation, we have  






Therefore, the general solution is

Wednesday, April 15, 2015

Separation of Variables, 43

Category: Differential Equations

"Published in Newark, California, USA"

Find the general solution for


Solution:

Consider the given equation above 


Expand the given equation, we have



Integrate on both sides of the equation, we have 



Since ln x and ln y cannot be integrated by simple integration, then we need to use the integration by parts as follows





Therefore, the general solution is

Tuesday, April 14, 2015

Separation of Variables, 42

Category: Differential Equations

"Published in Newark, California, USA"

Find the general solution for


Solution:

Consider the given equation above  


Expand the given equation and group according to their variables as follows





Divide both sides of the equation by αβ as follows 




Integrate on both sides of the equation, we have 






Take the inverse natural logarithm on both sides of the equation, we have



            
Therefore, the general solution is