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OpenStudy (anonymous):
sec(-pi/3) find the exact value..
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OpenStudy (rulnick):
2
OpenStudy (rulnick):
... pi/3 is 1/6 of a circle, secant is hypot over adjacent
OpenStudy (anonymous):
so the negative should be ignored right?
OpenStudy (rulnick):
can be, yes. secant is an even function.
OpenStudy (anonymous):
secx or senx?
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OpenStudy (anonymous):
sec = 1/cos 1 -- cos (-pi/3) 1 -- 1/2 2
OpenStudy (anonymous):
resolves?
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