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geekfromthefutur

  • one year ago

Need help plz been stuck on this for awhile cant find anything to help give medal and fan

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  1. geekfromthefutur
    • one year ago
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  2. just_gymnast_me
    • one year ago
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    Cant read too blurry

  3. geekfromthefutur
    • one year ago
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    ok

  4. geekfromthefutur
    • one year ago
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    Find the square of each imaginary number. 1.-3i 2.\[i \sqrt{3}\] 3.\[2i \sqrt{5}\]

  5. geekfromthefutur
    • one year ago
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    |dw:1442971089070:dw|

  6. anonymous
    • one year ago
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    This is the basic fact you need to start with: \[i=\sqrt{-1}\] From there we get \[i^2=-1\]

  7. anonymous
    • one year ago
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    1. (-3i)² = (-3)²(i)² = 9(-1) = -9 make sense?

  8. geekfromthefutur
    • one year ago
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    Oh ok cuz the 2 is saying 3 x 3=9

  9. anonymous
    • one year ago
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    right

  10. geekfromthefutur
    • one year ago
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    Ok so lets c if i can get the 2nd one and u check it if u want

  11. anonymous
    • one year ago
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    ok

  12. geekfromthefutur
    • one year ago
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    Wouldt it be the same since its 3 as well but negitive

  13. anonymous
    • one year ago
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    right it's -3

  14. geekfromthefutur
    • one year ago
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    Sweet

  15. geekfromthefutur
    • one year ago
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    ok so 3 would be like 5x5 since theres a 2 or it would be that and 2x2 because they all have the exponent of 2

  16. anonymous
    • one year ago
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    they would all have the exponent

  17. geekfromthefutur
    • one year ago
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    ok so it will be 5x5 and 2x2

  18. anonymous
    • one year ago
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    √5 * √5 and 2*2

  19. geekfromthefutur
    • one year ago
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    what does that sign mean againt not the * sign but doesn't that mean divide

  20. geekfromthefutur
    • one year ago
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    *again

  21. anonymous
    • one year ago
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    that's the square root sign. it basically cancels the exponent

  22. geekfromthefutur
    • one year ago
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    oh ok

  23. anonymous
    • one year ago
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    |dw:1442971897707:dw|

  24. geekfromthefutur
    • one year ago
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    ok so -20

  25. anonymous
    • one year ago
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    yep

  26. geekfromthefutur
    • one year ago
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    alrighty the 4th one seems a little confusing

  27. geekfromthefutur
    • one year ago
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    |dw:1442972072833:dw| ??

  28. anonymous
    • one year ago
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    it's the same deal. the square root just cancels the exponent and leaves the number|dw:1442972135034:dw|

  29. geekfromthefutur
    • one year ago
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    oh ok

  30. geekfromthefutur
    • one year ago
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    Ty for your help i really needed this

  31. anonymous
    • one year ago
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    sure no problem

  32. anonymous
    • one year ago
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    you got the last one?

  33. geekfromthefutur
    • one year ago
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    Yea i can just copy the last one its just change in didgets and same format lookin

  34. geekfromthefutur
    • one year ago
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    digits

  35. anonymous
    • one year ago
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    true

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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