# Thread: trig questions...please help

1. ## trig questions...please help

There are only 5 problems...I was wondering if someone would please look over my work...the only on that I really had trouble with is number 20...Im not quite sure how to put that into my calculator...

2. for number 20, I get 29.998
I did 100*( tan (39deg 45') - tan(28))
but I am not sure if it is right?