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OpenStudy (anonymous):
Find the exact real value of arccos(1/2)
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OpenStudy (anonymous):
@hartnn
hartnn (hartnn):
for which angle x is cos x = 1/2 ?
OpenStudy (anonymous):
5pi/3 and pi/3
OpenStudy (anonymous):
pi/3 is one of the choices... so its that one?
hartnn (hartnn):
thats correct :)
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