Solution for the trignometric equation I am looking for a solution for an equation of the form :
$ax - \sin(bx) + c = 0$. Without the constant term $c$, I can easily take a derivative to get the solution. But how do I take into account the constant?
This gives me the answer, but how do I find the solution?

That is a trascendental equation. In general, you can only solve it using numerical methods. You can find an analytic solution for some specific cases, though.
