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bridgetolivares

  • 2 years ago

helppp

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  1. bridgetolivares
    • 2 years ago
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    |dw:1335658368972:dw|

  2. Rizki_Zhou
    • 2 years ago
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    |dw:1335658432599:dw|

  3. bridgetolivares
    • 2 years ago
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    thats not even an option.

  4. asnaseer
    • 2 years ago
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    first simplify the denominator - what do you get?

  5. bridgetolivares
    • 2 years ago
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    the bottom numbers?

  6. asnaseer
    • 2 years ago
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    yes

  7. bridgetolivares
    • 2 years ago
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    oh, ok. one minute.

  8. Rizki_Zhou
    • 2 years ago
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    |dw:1335658636849:dw|

  9. bridgetolivares
    • 2 years ago
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    i got 10 + 10i

  10. asnaseer
    • 2 years ago
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    that is not correct. (3 + 4i) - (2 - 5i) = 3 + 4i - 2 + 5i = 1 + 9i

  11. asnaseer
    • 2 years ago
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    does that make sense?

  12. bridgetolivares
    • 2 years ago
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    yeah, now it does. i was doing something completely different

  13. asnaseer
    • 2 years ago
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    ok, next you should be able to simplify the numerator (i.e. the number on the top)

  14. asnaseer
    • 2 years ago
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    do you know the square root of 49 is?

  15. bridgetolivares
    • 2 years ago
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    7

  16. asnaseer
    • 2 years ago
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    correct, so the square root of -49 will be?

  17. bridgetolivares
    • 2 years ago
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    i got it from here thanks

  18. asnaseer
    • 2 years ago
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    ok

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