Find the exact value of arccos(cos4Pi3)
There is meant to be an arrow above the three..
What would the arrow above the three represent? and how would i solve that question
Find the exact value of arccos(cos4Pi3)
There is meant to be an arrow above the three..
What would the arrow above the three represent? and how would i solve that question
An arrow over a number makes no sense! Normally, an arrow over a letter indicates a vector but then it cannot be a number. I rather suspect that it is actually a "/" indicating ordinary division: $\displaystyle cos^{-1}(cos(4\pi/3))$. $\displaystyle 4\pi/3$ is outside the natural range of arccosine, which is 0 to $\displaystyle \pi$ so $\displaystyle cos^{-1}(cos(4\pi/3))= 2\pi- 4\pi/3= 2\pi/3$.