I had to look this up. I never learned "sohcahtoa" as a mnemonic device. We just learned sin and cos individually and then tan was sin/cos. I wonder if this would have helped some of my classmates out with it. Trig was a breeze for me. Except for my teacher dropping me to a C grade 'cause I wouldn't adhere to those ridiculous Cornell notes. Forget all my 100% scores on tests and homework, notes is what really mattered.