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Mathematics 14 Online
OpenStudy (anonymous):

How is cos^-1(sin33pi/2)=0?? I have no idea how to get to the answer.

OpenStudy (anonymous):

sin(33Pi/2)=1 now cos^-1(1)=0

OpenStudy (anonymous):

how is cos^ -1 =1?

OpenStudy (anonymous):

maybe I wrote the question wrong. It is: cos^-1(sin(33pi/2)). The answer is 0, but I dont know how to get there...

OpenStudy (anonymous):

cos^-1(1)=0

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