SOLUTION: Solve for 0 with a slash in between. Express your answer in Rdians. cos 0 with a slash= -1/2 a and , with a slash under it, 0 with a line in between it < with another line under

Algebra ->  Trigonometry-basics -> SOLUTION: Solve for 0 with a slash in between. Express your answer in Rdians. cos 0 with a slash= -1/2 a and , with a slash under it, 0 with a line in between it < with another line under       Log On


   

Question 312678: Solve for 0 with a slash in between. Express your answer in Rdians.
cos 0 with a slash= -1/2 a and , with a slash under it, 0 with a line in between it < with another line under it and then 3 pie/ 2.
how do i solve
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I think you mean theta? It's the Greek letter theta.
cos%28theta%29=-1%2F2
theta=arccos%28-1%2F2%29=120 or theta=240
Those values are in degrees.
Use the conversion factor,
2%2Api radians=360 degrees to convert to radians.
120%2A%282%2Api%2F360%29=2%2Api%2F3
240%2A%282%2Api%2F360%29=4%2Api%2F3
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.
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I think you mentioned that
theta+%3C=+3%2Api%2F2 so both the answers would meet that criteria.