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janessia

Solve 5+8i-4+2i

  • one year ago
  • one year ago

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  1. apoorvk
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    Simply add/subtract the real and imaginary parts separately and express in "a+ib" form!

    • one year ago
  2. janessia
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    so 1+10i?

    • one year ago
  3. lgbasallote
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    ^that's right

    • one year ago
  4. apoorvk
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    yeah correct-o!

    • one year ago
  5. janessia
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    wat about i7? 7 is an exponent

    • one year ago
  6. apoorvk
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    you mean \(\iota^7\) right?

    • one year ago
  7. janessia
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    yea i guess

    • one year ago
  8. apoorvk
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    okay do you know that i^2 =-1, i^3=-i, i^4=1, i^5=i again, i^6=-i... and so on? what would i^7 be according to this trend?

    • one year ago
  9. janessia
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    -1?

    • one year ago
  10. lgbasallote
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    here's a hint for you!! if the exponent is odd (except for 3) the answer is -i if the exponent is even (other than 2) the answer is 1

    • one year ago
  11. janessia
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    ohk so its -i

    • one year ago
  12. apoorvk
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    yes -i!

    • one year ago
  13. janessia
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    ohk thnx!

    • one year ago
  14. apoorvk
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    anytime!

    • one year ago
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