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anonymous
 5 years ago
Help me once again please:
3+5i

12i
anonymous
 5 years ago
Help me once again please: 3+5i  12i

This Question is Closed

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1what are we solving for?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0um question is "Evaluate the following"

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0its that thing where i^1 = i i^2 = 1 i^3 = i i^4 = 1

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1you could multiply by conjugate to get rid of i in the denominator \[\frac{(3+5i)(1+2i)}{(12i)(1+2i)}\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0then expand? the problem and solve correct?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1yes you should get (11i 7)/5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i got the 11i5 but where does the /5 come from?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.1when you multiply the bottom 1 2i +2i 4i^2 14i^2 14(1) 1+4 5

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Oh so multiplying both top and bottom doesn't cancel out the bottom. I see where i missed up, thank you very much :)
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