Question

what is arccos(6/13)?

Answer 1

Depends, are you looking for an answer including pi? e.g radians

Answer 2

no degrees would be great @hopelovelift

Answer 3

Just use a calculator then :D
arccos= cos^-1 (inverse cos)
arccos(6/13)=62.5 3.s.f or 1d.p

Answer 4

yeah but what if I'd like to keep it as an exact number? or is that too hard? @hopelovelift

Answer 5

Umm if you mean without rounding I guess this will be the answer 62.5135737496 degrees.

Answer 6

It would make sense if you were looking for an answer in radians. E.g 3pi/4
I don't think you can get a 'exact answer' with degrees