A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Write the complex number in standard form. 3-6i/6-i. I came up with 21/37-30/32i. Is this correct?

  • This Question is Closed
  1. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    conjugate the bottom

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yep I did . Multiplied by 6+1/6+1

  3. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    24 -33i ------- simplify as needed 37

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I came up with 18+3-36i-6i/36-i^2 after multiplying?

  5. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    teh bottom part is good; try the top again

  6. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    (3-6i) (6+i) 3.6 + 3.i + -6i.6 + -6i.i

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    That is still what I am getting?

  8. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    24 + (-36+3)i +6

  9. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    24 - 33i ; typing and adding just dont mix with me ...

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    18+3-36i-6i?

  11. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3.6 + 3.i + -6i.6 + -6i.i what is the answer to this?

  12. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    3 times 6 = ?? 3 time i = ?? -6 times 6 = ?? -6i times i = ??

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    18+3i-36-6i^2

  14. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    good, you even included the typo lol ; lets make that -36i for good measure

  15. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now add like terms

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    I think I found my mistake. I took the i and thought it was a 1

  17. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yep; they really shuold use a different symbol for it; something grand and unmistakeable ;)

  18. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok. I am still having a problem. I went back and re-did the multiplication and came up with a numerator of18-30i-6i(-1) and a denominator of 36-(-1). Is this part correct?

  19. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    let see... -36i + 3i ----- -33i the rest is good

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So now I am coming up with 18/37-24/37

  21. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    opps; that -6i^2 means -6(-1) = 6

  22. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    18 -6i^2 = 18+6 = 24

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    isnt i^2=-1?

  24. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes. that is its definition so the top part is: 18 -33i -6i^2 18-6i^2 -33i 18 -6(-1) -33i 18 +6 -33i 24 -33i

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Ok. and the denominator is -37?

  26. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    the denom is: 36 -(i^2) 36 -(-1) 36 +1 37

  27. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Final answer 24/27-33/37i

  28. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oops. Yes 37

  29. amistre64
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes; barring typos, that is the correct answer :)

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Woo-Hoo! Thanks for holding my hand through that! I just made a bunch of little mistakes that threw me off.

  31. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.