anonymous
  • anonymous
which is the proper way to type my answer using parentheses? I have to type my answers as (a-bi)/c or (a+bi)/c. Thanks. the answer is 4i-1 - ------ 2 (with the minus sign before the fraction) would I type -(1+4i)/2 or (1+4i)/2 or something totally different? Thanks!!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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SolomonZelman
  • SolomonZelman
-(4i-1)/2 is equivalent to \(\large\color{slate}{\displaystyle-\frac{4i-1}{2}}\) if that is what you are asking
anonymous
  • anonymous
yes, but moving it to a-bi form... I lost points on my previous answers with format, so I want to make sure I get the format and the signs correct this time.
anonymous
  • anonymous
does the -( ) stay outside the () and it becomes -(-1+4i) or does it distribute and become (1-4i) ? Does that make sense?

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SolomonZelman
  • SolomonZelman
for example: -(ci-d)/2 (-ci+d)/2 (d-ci)/2 (d/2) - (c/2)i
SolomonZelman
  • SolomonZelman
do you want to know how to put the parenthesis and this is better, or should I post it in latex or draw it?
SolomonZelman
  • SolomonZelman
that is a+bi or a-bi form
SolomonZelman
  • SolomonZelman
It seems as though you are lost....
SolomonZelman
  • SolomonZelman
(with my explanation I wouldn't get surprised)
anonymous
  • anonymous
not really. I solved (3+5i)/(-2+2i), got -(4i-1)/2 answer, but lost points on format. Is there a "more correct" way to format the answer? Personally, I think either would be good, but my teacher seems to disagree. :)
SolomonZelman
  • SolomonZelman
you are entering the answer just using what your keyboard has to offer without attachments, pictures and such. This is why you have a problem, because you sometimes fail to correctly put the answer that you actually had in mind. Is that right?
anonymous
  • anonymous
yes! only the keyboard :(
anonymous
  • anonymous
i have no way to attach it written for this problem, with my work. It's just the answer.
SolomonZelman
  • SolomonZelman
In my college email I use latex pictures if I want to communicate with my professor. (Any latex converter suffices. Then convert it to an image...) but I guess we would HAVE TO comprehend the parenthesis spaces and everything
SolomonZelman
  • SolomonZelman
I might not be able to perfectly teach you right now, but you know what?
SolomonZelman
  • SolomonZelman
http://www.wolframalpha.com/ enter your input in here (all your parenthesis and etc.) and wolfram is going to give you what you wrote an interpretation
anonymous
  • anonymous
This is an online HS course :) I prefer the assignments I can use Word equations or take a photo of my work for. I'm betting it doesn't really matter the format :) Thanks! I'll give it a try.
SolomonZelman
  • SolomonZelman
For example: when I enter (d/2) - (c/2)i I will use wolfram to see what it would show. http://www.wolframalpha.com/input/?i=%28d%2F2%29+-+%28c%2F2%29i it just interpreted my input (under "Input")
anonymous
  • anonymous
it gave me 1/2 -2i ?
SolomonZelman
  • SolomonZelman
that means that -(4i-1)/2 is correct
SolomonZelman
  • SolomonZelman
|dw:1435030403997:dw|
SolomonZelman
  • SolomonZelman
and the way to check this, if it is same or not, is as follows: http://www.wolframalpha.com/input/?i=+%283%2B5i%29%2F%28-2%2B2i%29%3D-%284i-1%29%2F2%3D%281%2F2%29-2i look at what I entered and the interpretation it gave.
SolomonZelman
  • SolomonZelman
(and the result "True" confirms that)
anonymous
  • anonymous
OK. I get that! I'm thinking since my teacher requires a-bi format, I should write it as 1/2-2i instead of -(4i-1)/2 ... ? I understand it all, I just hate losing points due to a -; when all the answers are essentially the same :) !!! I lost points with the 4i being written first on previous problems.
SolomonZelman
  • SolomonZelman
when you are missing the minus your result is the exact opposite. Although it is "exact" opposite (like everything besides -) it is still the exact "opposite" (the answer is wrong).
anonymous
  • anonymous
I meant whether it was -(4i-1) or (1+4i) not that the negative sign wasn't there. :)
anonymous
  • anonymous
Thanks for your help! I submitted. We'll see if I get it marked correct.

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