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OpenStudy (anonymous):
what is period of this function?
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OpenStudy (anonymous):
\[y=\arctan(\cos(sinx))\]
OpenStudy (anonymous):
idk but period of a girl is once a month
OpenStudy (anonymous):
i think it is pi.
OpenStudy (anonymous):
because f(x + pi) = f(x). i.e. arctan(cos(sin (x + pi))) = arctan(cos(-sinx)) = arctan(cos(sinx)). Also I used this property that saying cos(-x) = cos (x)
OpenStudy (aum):
Yes, it is pi.
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