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3psilon

If complex number z = 4-6i , then | z-2 | = ?

  • one year ago
  • one year ago

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  1. UnkleRhaukus
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    |dw:1350784902834:dw|

    • one year ago
  2. 3psilon
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    I don't understand?

    • one year ago
  3. UnkleRhaukus
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    |dw:1350784964700:dw|

    • one year ago
  4. 3psilon
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    Why is it coordinates? I thought it meant absolute value?

    • one year ago
  5. UnkleRhaukus
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    |dw:1350785015499:dw|

    • one year ago
  6. UnkleRhaukus
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    the absolut value is the length of the vector

    • one year ago
  7. 3psilon
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    So it is just Square root of 36+16?

    • one year ago
  8. UnkleRhaukus
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    |dw:1350785068730:dw|

    • one year ago
  9. 3psilon
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    or 4 i mean

    • one year ago
  10. UnkleRhaukus
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    almost

    • one year ago
  11. UnkleRhaukus
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    the length of z is Square root of 36+16 but we want the length of z-2

    • one year ago
  12. UnkleRhaukus
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    yeah so how long is z-2?

    • one year ago
  13. UnkleRhaukus
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    (tha answer is an irrational number )

    • one year ago
  14. satellite73
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    i am a bit lost \(z=4-6i\) so \(z-2=2-6i\) pythagoras gives the length

    • one year ago
  15. 3psilon
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    Okay I got cha! Thanks @UnkleRhaukus !

    • one year ago
  16. UnkleRhaukus
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    what answer did you arrive at?

    • one year ago
  17. 3psilon
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    Root 40

    • one year ago
  18. UnkleRhaukus
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    good work, can you simplify √40?

    • one year ago
  19. 3psilon
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    2 root 10?

    • one year ago
  20. UnkleRhaukus
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    good show

    • one year ago
  21. 3psilon
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    :) thx a lot

    • one year ago
  22. UnkleRhaukus
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    if you can remember the distance formula as the square root of the sums of the squares of the differences of the corresponding coordinates , thats great, otherwise just draw the picture

    • one year ago
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