I wanted to know, how to find out trigonometric ratios($\sin \theta$, $\cos \theta$, etc.) of any random angle(for example $67°$ or $32°$ or $82°$) and most of the internet's results were through taylor series approximation(which is quite time consuming and requires a lot of calculations).
I want to know is there any other way than taylor series approximation, that can provide an approximation without very large calculations, and without any help sheets(like log tables)?