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anonymous

  • one year ago

why is the square root of -1 equal to i

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  1. Nnesha
    • one year ago
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    good question.

  2. Vocaloid
    • one year ago
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    I believe that's just how it's defined, isn't it?

  3. anonymous
    • one year ago
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    this should help

  4. mathstudent55
    • one year ago
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    It's because mathematicians decided to define it that way.

  5. Nnesha
    • one year ago
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    bec my teachers said so

  6. Vocaloid
    • one year ago
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    what I meant to say was, mathematicians just decided to take the quantity sqrt(-1) and assign it the symbol i

  7. anonymous
    • one year ago
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    ok

  8. anonymous
    • one year ago
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    does this help @pocketpenguin1 ?

  9. anonymous
    • one year ago
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    i understand that it is because the square root of -1 is not defined under real space due to the rules of square roots but i don't know how to write it in an algebraic form

  10. anonymous
    • one year ago
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    not really @Houdini_Dragon

  11. anonymous
    • one year ago
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    hmm ok one sec

  12. Vocaloid
    • one year ago
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    can you give an example?

  13. anonymous
    • one year ago
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    https://simple.wiktionary.org/wiki/square_root

  14. anonymous
    • one year ago
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    how about now?

  15. Nnesha
    • one year ago
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    it's cycle |dw:1444608366475:dw|

  16. anonymous
    • one year ago
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    ooohhh i like it @Nnesha

  17. Nnesha
    • one year ago
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    thanks.-,-

  18. anonymous
    • one year ago
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    i understand more clearly now, you use a square root to find which number is being multiplied by itself in order to get the number under the square root symbol, but you can not multiply any number by itself to get -1, so \[\sqrt{-1}\] is in imaginary space

  19. anonymous
    • one year ago
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    thank you

  20. anonymous
    • one year ago
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    np medal?

  21. anonymous
    • one year ago
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    nvm i am glad u got it and that is what matters

  22. Nnesha
    • one year ago
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    for algebraic expression i guess i represent a variable let's say we have 3i +4i = 7i it also depends on the statement hm

  23. anonymous
    • one year ago
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    u can close this question now sense u understand........

  24. anonymous
    • one year ago
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    how

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