Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
Perform indicated operation and leave answer in the form a+bi.
(7+2i)/(43i)
 one year ago
 one year ago
Perform indicated operation and leave answer in the form a+bi. (7+2i)/(43i)
 one year ago
 one year ago

This Question is Closed

CalcmathleteBest ResponseYou've already chosen the best response.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

IloveCharlieBest ResponseYou've already chosen the best response.0
22/25+29i/25? http://www.wolframalpha.com/input/?i=%28%287%2B2i%29%2F%2843i%29%29*%28%284%2B3i%29%2F%284%2B3i%29%29
 one year ago

CalcmathleteBest ResponseYou've already chosen the best response.2
Yes...that is correct if you wanted to use a calculator...
 one year ago

IloveCharlieBest ResponseYou've already chosen the best response.0
So it that the most simplified? Or could I simplify it down more?
 one year ago

CalcmathleteBest ResponseYou've already chosen the best response.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

IloveCharlieBest ResponseYou've already chosen the best response.0
O.k, thanks so much :)
 one year ago
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
 Engagement 19 Mad Hatter
 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.