SOLUTION: How do you solve problems like arcsin(sin pi/6) or cos(arctan (-radical 3))

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Question 810813: How do you solve problems like
arcsin(sin pi/6)
or
cos(arctan (-radical 3))
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How do you solve problems like
arcsin(sin (pi/6))
Ans: pi/6 because arcsin and sin are inverse functions.
or
cos(arctan (-radical 3))
Find the angle whose tangent is -sqrt(3)
That angle is -60 degrees.
Find the cosine of -60 degrees
Ans: cos(-60) = cos(60) = 1/2
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Cheers,
Stan H.
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