## Will This Solve?

Will this solve for x? I've multiplied it out and got greater than fourth order, but as I'm only mediocre at spotting hidden trig identities I'm not sure that I haven't missed an opportunity to reduce it.

A =( (P-Rcos x) / ( sqr(W^2-(P-Rcos x)^2) )-cot x)(Jsin x+Kcos x)