iheartfood
pi/3 is the reference angle for:
A. 2pi/3
B. 15pi/3
C. 7pi/3
D. 19pi/3
**its CHOOSE ALL THAT APPLY!!!:)
my answers: C. 7pi/3 and D. 19pi/3
are those right??
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nphuongsun93
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yes
iheartfood
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and those 2 are the ONLY answers right?? out of the 4??
mathstudent55
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A is also an answer
iheartfood
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it is?? can u pls explain?? :)
iheartfood
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okay so A,C and D are for sure the answers to this question?? :O
mathstudent55
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|dw:1361311295579:dw|
mathstudent55
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Yes. Choice B is 15pi/3 which is on the negative x axis, so it is not a reference angle.
nphuongsun93
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oh reference angle, i miss that. sorry
iheartfood
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kk thanks!!!:)