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iheartfood

  • 3 years ago

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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  1. nphuongsun93
    • 3 years ago
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    yes

  2. iheartfood
    • 3 years ago
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    and those 2 are the ONLY answers right?? out of the 4??

  3. mathstudent55
    • 3 years ago
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    A is also an answer

  4. iheartfood
    • 3 years ago
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    it is?? can u pls explain?? :)

  5. iheartfood
    • 3 years ago
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    okay so A,C and D are for sure the answers to this question?? :O

  6. mathstudent55
    • 3 years ago
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    |dw:1361311295579:dw|

  7. mathstudent55
    • 3 years ago
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    Yes. Choice B is 15pi/3 which is on the negative x axis, so it is not a reference angle.

  8. nphuongsun93
    • 3 years ago
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    oh reference angle, i miss that. sorry

  9. iheartfood
    • 3 years ago
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    kk thanks!!!:)

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