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

IloveCharlie Group Title

Perform indicated operation and leave answer in the form a+bi. (7+2i)/(4-3i)

  • one year ago
  • one year ago

  • This Question is Closed
  1. Calcmathlete Group Title
    Best Response
    You've already chosen the best response.
    Medals 2

    Basically, you have to rationalize the denominator which means to get rid of 'i' in the denominator. THat means that you have to multiply by the conjugate in the denominator. \[\frac{7 + 2i}{4 - 3i} \implies \frac{7 + 2i}{4 - 3i} \times \frac{4 + 3i}{4 + 3i} \implies~?\]

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

    22/25+29i/25? http://www.wolframalpha.com/input/?i=%28%287%2B2i%29%2F%284-3i%29%29*%28%284%2B3i%29%2F%284%2B3i%29%29

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

    Yes...that is correct if you wanted to use a calculator...

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

    So it that the most simplified? Or could I simplify it down more?

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

    @Calcmathlete

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

    THat is the most simplified...I'm not surte if your teacher wants the decimal one or the fraction one. It's up to you :)

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

    O.k, thanks so much :)

    • 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.