Consult
The following reference materials are currently available at TechMechAcademy:
General TechMech Tools
Here you will find, for example, the Greek alphabet, the right-hand rule, as well as centroids and properties of areas and solids, and much more.
Mathematical Tools
Here you can find, for example, the rules of differentiation and integration, as well as power laws, trigonometric relationships, and theorems like the Law of Sines and the Law of Cosines.
Physical Tools
Here you can find, for example, the formula for determining mass based on density and volume.