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AzteckBest ResponseYou've already chosen the best response.2
\[\frac{ 12+9i }{ 34i }\times \frac{ 3+4i }{ 3+4i }=\frac{ (12+9i)(3+4i) }{ 9+16 }\]
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
Rationalise the denominator mate....
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
Thanks forgot about that. U cant have i in the denominator. i was using long division. fail.
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
Mate. If you need the answer to refer to when you do it. Here's what you want to get as your answer. 3i is the answer.
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
I knew what the answer was. I just forgot how to get it.
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
ah okay, no worries then.
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
Can you help me with one more problem?
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
How do i find an absolute value of a binomial with an i?
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
absolute value of a complex number means the distance of the curve of the complex number. To find the distance of complex number curve, you just use pythagoras... \[\left a+ib \right=\sqrt{a^2+b^2}\]
 one year ago

blahblah_who_caresBest ResponseYou've already chosen the best response.0
So "i" just disappears?
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
Dude haven;t you learnt about absolute values? The absolute value of something is the distance from the origin.
 one year ago

AzteckBest ResponseYou've already chosen the best response.2
You're finding the distance from the origin to to the point (a, b)
 one year ago
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