you don't know me. But I want to give you a hug. I understand it. Thank you so much. I love that you explain why everything on your graph is labelled how it is. Thank you
How did you get inverse of Cos ( 4 / 30 ) with an answer of 97.66 ... when I put that into my calculator .. inverse of Cos ( 4 / 30 ) .. I got 82 . 3377 .. where am I going wrong ?