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Mathematics 8 Online
OpenStudy (sloppycanada):

Confusion on the following - http://prntscr.com/b9wxsf

OpenStudy (mecharv):

SHould be pi/2, because cos4x is 2pi/4 which is pi/2

OpenStudy (sloppycanada):

That was my thought, but, it seems pi/2 isn't a choice @mecharv

OpenStudy (mecharv):

1/2(pi) is not pi/2? :O

OpenStudy (mecharv):

Check the last option?

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