Monday
July 28, 2014

Homework Help: Math

Posted by Anonymous on Monday, May 25, 2009 at 12:08pm.

Determine whether each equation is true for all x for which both sides of the equation are defined. If it is true, support your conclusion with a sketch using the unit circle. If it is false, give a counterexample.
inverse sin(-x)=-inverse sin(x)
inverse cos(-x)=-inverse cos(x)

I think that the first one is true and the second one is false but I do not know what to put down as a sketch or counterexample. Any help is appreciated.

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