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Saturday, March 7, 2015

Eliminating Arbitrary Constant, 7

Category: Differential Equations 

"Published in Newark, California, USA"

Eliminate the arbitrary constant for


ω is a parameter.

Solution:

Consider the given equation above  


Take the derivative on both sides of the equation with respect to t, we have 





Take the derivative on both sides of the equation again with respect to t, we have  





Multiply the given equation by ω², we have




Now, let's consider the two equations



If you add the two equations, their right side will be eliminated and therefore, the final answer is

Friday, March 6, 2015

Eliminating Arbitrary Constant, 6

Category: Differential Equations

"Published in Newark, California, USA"

Eliminate the arbitrary constant for


ω is a parameter; not to be eliminated.

Solution:

Consider the given equation above 


Take the derivative on both sides of the equation with respect to t, we have 






Take the derivative on both sides of the equation again with respect to t, we have  







Substitute the above equation to the given equation and therefore, the final answer is





Thursday, March 5, 2015

Eliminating Arbitrary Constant, 5

Category: Differential Equations

"Published in Newark, California, USA"

Eliminate the arbitrary constant for



Solution:

Consider the given equation above  


Divide both sides of the equation by x², we have 





Take the derivative on both sides of the equation with respect to x, we have 








Multiply both sides of the equation by x³dx and therefore, the final answer is