Saturday
April 19, 2014

Homework Help: Precalc

Posted by George on Wednesday, February 13, 2008 at 5:34pm.

Find the values of x between (or equal to) 0 and 360 degrees to satisfy each equation.

arcsin1/2=x
I got 30 degrees as one angle, but how do I find the second one?

arccot1=x
Is the answer 45 degrees?

Also,

Find each value:

arccos(-1/2)


and

sin(2 sin^-1 1/2)

Thanks in advance. Even a little help is appreciated.

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