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anonymous

  • 5 years ago

Why do we use complex conjugates?

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  1. anonymous
    • 5 years ago
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    wait... if u mean what i think and im not just being dumb then they are helpful with limits many times help u not get 0/0 if u dnt know l'Hospitals

  2. anonymous
    • 5 years ago
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    plus its usally just easier

  3. anonymous
    • 5 years ago
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    To make denominators that have an imaginary part just real. It's just like how we don't like having square roots in the denominator. It works out well: \[(a+bi)(a-bi)=a^2-b^2i^2=a^2-b^2(-1)=a^2+b^2\]

  4. anonymous
    • 5 years ago
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    o wait, that too gah!! forgetting al-jabr 2 isnt any good....

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