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Destinyyyy

  • one year ago

Divide and simplify to the form a+bi... Divide and express the result in standard form. 6i/9-8i

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  1. Destinyyyy
    • one year ago
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    4i/1+i

  2. Destinyyyy
    • one year ago
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    If I remember correctly im suppose to times the top and bottom by 1-i

  3. welshfella
    • one year ago
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    multiply denominator and numerator by the conjugate of the denominator

  4. welshfella
    • one year ago
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    yes that is correct

  5. Destinyyyy
    • one year ago
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    4i(1-i)/ (1+i)(1-i)

  6. welshfella
    • one year ago
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    right

  7. welshfella
    • one year ago
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    now the denominator will work out to a real number

  8. Destinyyyy
    • one year ago
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    I dont remember if I cancel out like terms between the top and bottom or if I distribute the 4i

  9. Destinyyyy
    • one year ago
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    4i+4/2

  10. welshfella
    • one year ago
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    first compute the denominator (1 + i)( 1 - i) = 1 + i - i -i^2 = ?

  11. Destinyyyy
    • one year ago
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    1-i^2 ....

  12. welshfella
    • one year ago
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    and what is i^2 equal to ?

  13. Destinyyyy
    • one year ago
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    Seriously? -1.

  14. Destinyyyy
    • one year ago
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    2+2i

  15. welshfella
    • one year ago
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    yes im serious i^2 = -1 so 1 - i^2 = 1 - (-1) = 2

  16. Destinyyyy
    • one year ago
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    I already said 2 minutes ago 4i+4/2 .. Im way ahead of you. I already finished

  17. welshfella
    • one year ago
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    oh sorry i missed that

  18. welshfella
    • one year ago
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    2 + 2i is the final answer

  19. Destinyyyy
    • one year ago
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    Its fine. But all im asking for is refreshers.

  20. welshfella
    • one year ago
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    OK you are doing pretty well

  21. Destinyyyy
    • one year ago
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    Um thanks

  22. welshfella
    • one year ago
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    very well

  23. Destinyyyy
    • one year ago
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    Im working on a different one and im a bit stuck at the end... Divide and express the result in standard form. 6i/9-8i

  24. Destinyyyy
    • one year ago
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    54i-48/145

  25. welshfella
    • one year ago
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    this cant be simplfiesdany further 54i 48 --- - -- 145 145

  26. welshfella
    • one year ago
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    - is the standard form

  27. Destinyyyy
    • one year ago
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    I got help in another question... And what you said is incorrect.

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