Differential Equation, Rewriting solution

  • Thread starter ecoo
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  • #1
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Homework Statement



Untitled.png


(also express C and alpha as functions of A and B)

I need help with the second part (rewriting the solution).

Homework Equations



e = cos(θ) + jsin(θ)

The Attempt at a Solution



Unfortunately, I can't think of how to even begin solving. I have the notion that I have to combine the two terms into one, however the A and B constants prevent me from doing so. Can someone point me in the right direction?

Thanks
 

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Answers and Replies

  • #3
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Have you been able to do the first part?

Yes, I have already done the first part. I did do it backwards, however, because I do not know how to solve differential equations (second derivative ---> function) yet.
 
  • #4
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Yes, I have already done the first part. I did do it backwards, however, because I do not know how to solve differential equations (second derivative ---> function) yet.
Then by the same backwards approach, do you know the trigonometric identity for the cosine of the sum of two angles?
 
  • #5
87
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Then by the same backwards approach, do you know the trigonometric identity for the cosine of the sum of two angles?

Thanks for the help
 

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