SOLUTION: Find the exact value of cot(-390º) / sec(22π/3) Thank you

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Question 889660: Find the exact value of cot(-390º) / sec(22π/3) Thank you
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the exact value of cot(-390º) / sec(22π/3)
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cot(-390) = cot(-30) = -cot(30) = -sqrt(3)
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sec(22pi/3) = sec((4/3)pi) = sec(240 deg) = -sec(60) = -2
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Ans: -sqrt(3)/2
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Cheers,
Stan H.
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