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I typed it in on my calculator but did not do a thingg!

\(\cos(t)=\large{1 \over- 3} \)
\(\cos^{-1}(\large{1 \over- 3} )=t\)

How did you get that?

First I divided -3 from both sides

How would you put this in a decimal form.?

lol you gotta put this into your calc first and then your answer will be a decimal

I got 109.47

Are you supossed to be working in radians or degrees?

Ok now I got 1.91.!

YUP THAT IS WHAT I GOT :)

Thanks for the help.! (-: