SOLUTION: Solve cos-1(1/2).
Algebra.Com
Question 339978: Solve cos-1(1/2).
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Since both and , this means that =\frac{\pi}{3})
or =-\frac{\pi}{3})
. You can add to the second angle to get
So or =\frac{5\pi}{3})
where the angle is in the interval from 0 to
If you need more help, email me at jim_thompson5910@hotmail.com
Also, feel free to check out my tutoring website
Jim
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