I was originally taught the standard SOHCAHTOA in high school, and it didn't really click for me at all until I got to my undergrad introductory functions and g

I was originally taught the standard SOHCAHTOA in high school, and it didn't really click for me at all until I got to my undergrad introductory functions and graphs course. Near the end we got to Euler's forumla and our professor starting graphing e^{ix} in an extended complex plane. So apparently people learn things differently, as I prefer to work with identities and conceptual understanding rather than disconnected concepts.