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alexsu22

  • 4 years ago

Evaluate expression.

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  1. alexsu22
    • 4 years ago
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    \[2i^{124}-3i^{10}\]

  2. drpeppergal
    • 4 years ago
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    What does i =?

  3. alexsu22
    • 4 years ago
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    it stands for...\[\sqrt{-1}\]

  4. drpeppergal
    • 4 years ago
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    Sorry I don't do Square Roots. :(

  5. alexsu22
    • 4 years ago
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    Darn :/

  6. nenadmatematika
    • 4 years ago
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    first you must know that i^2=-1...so, you've got 2i^124=2*(i^2)^62=2*62=124 then 3*i^10=3*(i^2)^5=3*(-1)=-3 so the result is 124-(-3)=127

  7. nenadmatematika
    • 4 years ago
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    oh sorry I made the mistake in the begining 2*(i^2)^62=2*1=2 the other part is fine so the result is2-(-3)=5 sorry if you got confused :D

  8. alexsu22
    • 4 years ago
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    Oh well thanks

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