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anonymous
 one year ago
simplify:
3i/2+5i
anonymous
 one year ago
simplify: 3i/2+5i

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 3i}{ 2+5i }\]

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1Multiply both numerator and denominator by the conjugate of denominator

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ 3i (25i) }{ 2+5i(25i) }\] kind of like that right? Just not all over the fraction bar if you know what i mean...

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1Yes, if you mean : \(\dfrac{ 3i (25i) }{ (2+5i)(25i) }\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you're multiplying them right?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1for denominator you may use the identity: \((a+bi)(abi)=a^2+b^2\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, i understand how to get the top part. you multiply 3i and 2 to get 6i, and 3i and 5i to get 15, and because of the i on both, im pretty sure that it ccancels out. the bottom is where i always get lost
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