I'm having a total brain fade when it comes to sin cos and tan. I got it "oscar had a hairy old a##" and works great but I'm grawing a blank on what to do when the denominater isn't given. I cant seem to punch out a correct number on my calc. like right now im looking at "tan 73.5 = 320/adj." Just wanna know the process to get where I need to be thanks for any help.