Proof that this sine equation isn't solvable

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Nov 16th 2012, 07:00 AM
isatis55

Proof that this sine equation isn't solvable

Hi,I need to show that the following equation is not solvable:

Quote:

$\ddot{\theta}(t)+a\dot{\theta}(t)+b\sin\theta(t)+\ sin\left(ct\right)\sin\theta(t)=0$

Any idea? Thank you
Nov 16th 2012, 07:26 AM
Prove It

Re: Proof that this sine equation isn't solvable

Is $\displaystyle \begin{align*} \theta \end{align*}$ a function of $\displaystyle \begin{align*} t \end{align*}$ ?
Nov 16th 2012, 08:30 AM
isatis55

Re: Proof that this sine equation isn't solvable

$\theta$ is a function of t.My idea was to use Laplace transorm on the equation, but I am not able to.

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