SOLUTION: tan(cos^-1 (1/3)) = ??

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Question 1031112: tan(cos^-1 (1/3)) = ??
Found 2 solutions by Alan3354, stanbon:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
tan(cos^-1 (1/3)) = ??
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Find a terminal point.
cos = x/r = 1/3
y = sqrt(r^2 - x^2) = sqrt(8)
Terminal point is (1,sqrt(8))
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tan = y/x
= sqrt(8)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
tan(cos^-1 (1/3)) = ??
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Since the cos is 1/3, x = 1 and r = 3,
Then y = sqrt[3^2-1^2] = sqrt(8)
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Ans: tan = y/x = sqrt(8)
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Cheers,
Stan H.
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