Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

pottersheep Group Title

Is (+-i√15)/5 equal to +-i√(3/5) ???? Shouldnt i be over 5???

  • one year ago
  • one year ago

  • This Question is Closed
  1. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{\sqrt{15}}5=\frac{\sqrt{3\cdot5}}5=\sqrt{\frac35}\]

    • one year ago
  2. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks, shouldn'tthe i still be over 5 tho?

    • one year ago
  3. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    nope...

    • one year ago
  4. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\pm i\frac{\sqrt{15}}5=\pm i\frac{\sqrt{3\cdot5}}5=\pm i\sqrt{\frac{3\cdot5}{25}}=\pm i\sqrt{\frac35}\]

    • one year ago
  5. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    oo but the i was over 5 to begin with

    • one year ago
  6. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    but the 5 can move around...

    • one year ago
  7. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ok let me try to process this xD

    • one year ago
  8. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\pm\frac i5\sqrt{15}=\pm i\frac{\sqrt{15}}5=\pm i\frac{\sqrt{3\cdot5}}5=\pm i\sqrt{\frac{3\cdot5}{25}}=\pm i\sqrt{\frac35}\]

    • one year ago
  9. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    remember that\[\frac{2i}3=i\frac23\]not\[\frac{2i}3=\frac i3\frac23\]

    • one year ago
  10. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[a\frac bc=b\frac ac=\frac{ab}c\]

    • one year ago
  11. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    :O it is???

    • one year ago
  12. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ooo

    • one year ago
  13. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    what else could it be?

    • one year ago
  14. pottersheep Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    THANKSSS

    • one year ago
  15. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    \[\frac{ab}c=a\cdot\frac bc\neq\frac ac\cdot\frac bc\]

    • one year ago
  16. TuringTest Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    welcome :D

    • one year ago
    • Attachments:

See more questions >>>

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.