SOLUTION: find exact value or sec^-1 (2)

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Question 789944: find exact value or sec^-1 (2)
Answer by lwsshak3(11628) About Me  (Show Source):
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find exact value or sec^-1 (2)
secx=2=1/cosx
cosx=1/2
x=π/3
sec^-1 (2)=π/3