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 2 years ago
Perform indicated operation and leave answer in the form a+bi.
(7+2i)/(43i)
 2 years ago
Perform indicated operation and leave answer in the form a+bi. (7+2i)/(43i)

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Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.2Basically, 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. \[\frac{7 + 2i}{4  3i} \implies \frac{7 + 2i}{4  3i} \times \frac{4 + 3i}{4 + 3i} \implies~?\]

IloveCharlie
 2 years ago
Best ResponseYou've already chosen the best response.022/25+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

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.2Yes...that is correct if you wanted to use a calculator...

IloveCharlie
 2 years ago
Best ResponseYou've already chosen the best response.0So it that the most simplified? Or could I simplify it down more?

Calcmathlete
 2 years ago
Best ResponseYou've already chosen the best response.2THat is the most simplified...I'm not surte if your teacher wants the decimal one or the fraction one. It's up to you :)

IloveCharlie
 2 years ago
Best ResponseYou've already chosen the best response.0O.k, thanks so much :)
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