Question

tan-1=43\9.3

Answer 1

totally unclear

is there an argument after tan-1 ??

did you mean tan^-1 Ø or something like that?

is the right side = 43/9.3 ?

I will assume you meant:

tan^-1 Ø = 43/9.3
= 4.6236...
Ø = 77.796°