I am working on a few problems for a test tommorrow and I would like to know if Tan(x/3)= 3.8 and 2sin3x=cosx can be solved by putting tan(x/3) in y1 and 3.8 in y2 or is there a better way? The study sheet tells me to find all solutions to 3 decimals. I would appreciate any method you could provide.

Thank you!

Keith Stevens