Finding the particular solution to the differential equation

  • Thread starter mokee92
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  • #1
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Homework Statement



Please see attachment

Homework Equations



Please see attachment

The Attempt at a Solution



Please see attachment. im supposed to compare coefficients but it doesn't seem possible. what do I do next? (also, if i have posted this in the wrong forum...I apologize. please mention the right forum) Thanks
 

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Answers and Replies

  • #2
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Homework Statement



Please see attachment

Homework Equations



Please see attachment

The Attempt at a Solution



Please see attachment. im supposed to compare coefficients but it doesn't seem possible. what do I do next? (also, if i have posted this in the wrong forum...I apologize. please mention the right forum) Thanks

Your particular solution is too complicated. Try yp = A cos5x + B sin5x.
 
  • #3
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is my answer correct?

Your particular solution is too complicated. Try yp = A cos5x + B sin5x.

is my answer correct...?

Please see attachment
 

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  • #4
34,934
6,698
Why don't you check it for yourself? Just substitute your particular solution into the differential equation.

Also, the pictures you took are difficult to read. The lighting is poor and taking the picture at an angle to the paper makes the upper part of the paper difficult to read.
 
  • #5
LCKurtz
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Also, the pictures you took are difficult to read. The lighting is poor and taking the picture at an angle to the paper makes the upper part of the paper difficult to read.

It seems to me we are seeing more and more of this. Pictures, sometimes one for the problem and one for the solution effort, links to pdf's etc. Anything but typing in the problem so we have an editable posting to work with. I wish PF would make a stronger effort to discourage that. Often I just skip over such posts.
 
  • #6
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I apologize

I cant seem to work with the editor so taking pictures seemed like a better option. Anyways, thanks for your help. I still don't know whether my A and B are right.
 
  • #7
LCKurtz
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I cant seem to work with the editor so taking pictures seemed like a better option. Anyways, thanks for your help. I still don't know whether my A and B are right.

No problem mokee; my comments were directed to Mark44 who is a moderator. You didn't violate any rules. To check whether your A and B are right, plug your answers in to the original equation and see if they work, as Mark suggested.
 

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