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Applications of Trig: related acute angles, coordinate plane

  1. Aug 16, 2016 #1
    1. The problem statement, all variables and given/known data
    upload_2016-8-16_20-4-58.png

    2. Relevant equations

    none
    3. The attempt at a solution
    Two possible locations on the coordinate axis for the terminal arm of angle A:
    upload_2016-8-16_20-6-57.png

    Two possible values for the measure of angle A and the related acute angle:

    upload_2016-8-16_20-8-40.png

    Can someone please tell me if I did this correctly?
     

    Attached Files:

  2. jcsd
  3. Aug 16, 2016 #2

    SammyS

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    That looks good.

    Are you instructed to round to the nearest 0.1° ?
     
  4. Aug 16, 2016 #3
    No, I haven't been instructed to do so, but I usually put the rounded number in brackets just in case...
     
  5. Aug 16, 2016 #4
    Anyway, thanks for verifying my answer :)
     
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