US Patent and Trade Office (USPTO) Customer Service Issues

I have developed three math algorithms, 1) how to trisect an arbitrary angle, 2) how to double the cube, and 3) how to square the circle. I have various applications in mind but prefer not to disclose the algorithms publicly at the moment. Could you please advise on the best way to protect my claims as the inventor - through patent, copyright, or trademark? Is it feasible to file one application with the USPTO covering all three algorithms, and what would be the associated costs? Thank you. [redacted]