Free counters!

Wednesday, April 8, 2015

Separation of Variables, 36

Category: Differential Equations

"Published in Newark, California, USA"

Find the general solution for


Solution:

Consider the given equation above  


Express y' as dy/dx as follows



By separation of variables, transpose x² dx to the right side of the equation and ey to the left side of the equation, we have




Integrate on both sides of the equation, we have  












Therefore, the general solution is


where G = - C.

Tuesday, April 7, 2015

Separation of Variables, 35

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 y3e-x in order to separate dx and dy from other variables as follows   




Integrate on both sides of the equation, we have 









Therefore, the general solution is 

Monday, April 6, 2015

Separation of Variables, 34

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 cos² y in order to separate dx and dy from other variables as follows  




Integrate on both sides of the equation, we have

    






Therefore, the general solution is


where F = 2C.