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anonymous

  • one year ago

Please help with polar coordinates

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  1. anonymous
    • one year ago
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    The polar coordinates of a point P are (2,240 degrees). The Cartesian (rectangular) coordinates of P are?

  2. anonymous
    • one year ago
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    Can someone explain this diagram (which is in my book's explanation of the answer) |dw:1435795039629:dw|

  3. anonymous
    • one year ago
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    No

  4. beginnersmind
    • one year ago
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    Oops sorry. It's meant to be: r = 2 phi = 240 degrees

  5. anonymous
    • one year ago
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    what does phi mean

  6. beginnersmind
    • one year ago
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    phi means the angle with the x-axis. r is the length.

  7. anonymous
    • one year ago
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    Initially I thought it would be 2240 - 360*360*... until the degree is less than 360. But then I got 80... Based on the book's picture it should be 240

  8. beginnersmind
    • one year ago
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    It is 240 degrees. It's given as (2, 240). It's two different numbers: 2 is the length of the vector, and 240 degrees is how much it's rotated from the positive x direction.

  9. anonymous
    • one year ago
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    0_0

  10. anonymous
    • one year ago
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    Wow now I understand. lol thanks

  11. beginnersmind
    • one year ago
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    Yeah, I got confused as well at first, lol.

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