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kamuela710

  • 4 years ago

Describe the vector as an ordered pair. Round the coordinates to the nearest tenth. https://www.connexus.com/content/media/456845-2232011-22334-PM-418163281.png

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  1. baddinlol
    • 4 years ago
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    You can use Trigonometry.

  2. baddinlol
    • 4 years ago
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    cos(103) = vertical/5

  3. baddinlol
    • 4 years ago
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    Vertical component = cos(103)*5

  4. baddinlol
    • 4 years ago
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    For horizontal component,

  5. baddinlol
    • 4 years ago
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    cos(193) = horizontal component/5

  6. baddinlol
    • 4 years ago
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    horizontal component = cos(193)*5

  7. baddinlol
    • 4 years ago
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    So you get, -4.87i -1.12j

  8. baddinlol
    • 4 years ago
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    Co-ordinate = (-4.9, -1.1)

  9. baddinlol
    • 4 years ago
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    so basically , cos a = a1/|a| where a is the angle measure anticlockwise from the positive y.

  10. baddinlol
    • 4 years ago
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    cos b = b1/|b| where b is the measure anticlockwise from positive x

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