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

hba Group Title

Question...

  • one year ago
  • one year ago

  • This Question is Closed
  1. hba Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    If \[z _{1}=1-i ,z_{2}=7+i\] then the modulus of \[\frac{ z _{1}-z _{2} }{ z _{1}z _{2} }\]

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

    looks like no one is interested in helping me :D

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

    @ash2326 @phi

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

    I tried to Solve it And got the final expression as \[\frac{ -6-2i }{ 8-6i }\] Do I apply the modulus now ?

    • one year ago
  5. ash2326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    First find z1-z2 and z1 z2 Then take the modulus of both and divide

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

    @ash2326 I think you did not see my comment

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

    I moreover simplified it to \[-3-i/4-3i\]

    • one year ago
  8. ash2326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Now find modulus of -3-i and find modulus of 4-3i and divide both

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

    Taking a conjugate would help ?

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

    Well @ash2326 I tried it that way but it didn't help :(

    • one year ago
  11. ash2326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Are you getting a wrong answer?

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

    multiply numerator and denominator by 4+3i it will make the problem more easier

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

    @ash2326 Yes

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

    @niksva This is what we call a conjugate and i was asking that only ?

    • one year ago
  15. ash2326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Answer is \[\frac{\sqrt {10}}{5}\] What did you get?

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

    @hba i know what is meant by conjugate i m telling u to rationalize the function

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

    \[2\sqrt{2}/7\]

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

    LoL :D

    • one year ago
  19. ash2326 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    You made a mistake here. Let me show \[-3-i/4-3i\] \[|-3-i|=\sqrt{(-3)^2+(-1)^2}=\sqrt{10}\] \[|4-3i|=\sqrt{(4)^2+(-3)^2}=\sqrt {25}=5\] so you'd get \[\frac{\sqrt{10}}{5}\]

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

    Thanks A Lot @ash2326

    • 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.