SOLUTION: Suppose cos (beta) = 1/2. 0 < or = (beta) < or = 2(pie). Find all values of beta that solve this equation.
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Question 662323: Suppose cos (beta) = 1/2. 0 < or = (beta) < or = 2(pie). Find all values of beta that solve this equation.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
My first question is "What sort of pie?" Pie is dessert, pi is the Roman alphabet representation of the 16th character of the lower case Greek alphabet representing the ratio of the circumference of a circle to its diameter, namely 
\ =\ \frac{1}{2},\ 0\ \leq\ \beta\ \leq\ 2\pi)
Use the unit circle. Remember that the value of cosine is the 
coordinate of the point of intersection of the terminal ray and the unit circle. Look for both points that have an coordinate equal to 
.
John
My calculator said it, I believe it, that settles it
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