531bd0

<img width="460" alt="Image" src="https://github.com/user-attachments/assets/3d206942-eba4-4ac7-8f13-7519135cc377" />

Should be R(t)sin(t) not R(t)sin(3t)

See [derivativesOfPolarFunctions/exercises/desmosInstructionsPolar.tex](https://github.com/mooculus/calculus/blob/master/derivativesOfPolarFunctions/exercises/desmosInstructionsPolar.tex)