anonymous
  • anonymous
I'm having a hard time with this problem. Add: -6+i ----- -7-5i
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
excuse me, Perform the indicated operation. Not add.
anonymous
  • anonymous
just multiply the numerator/denominator by the conjugate of the denominator which is (-7 + 5i)
anonymous
  • anonymous
I'm getting some funky numbers for the numerator. If i'm not mistaken the denominator is 2?

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anonymous
  • anonymous
|dw:1332969711633:dw| well the denominator may be reduced but do you see how I got 49 + 25 for the denominator?
anonymous
  • anonymous
Yes.
anonymous
  • anonymous
|dw:1332969964575:dw| i don't think that numerator is wierd...
anonymous
  • anonymous
looks quite rational compared to 74
anonymous
  • anonymous
I'm so dumb for some reason I was putting Square Roots on the -6 and the -7
anonymous
  • anonymous
so can you take it from here? factor out the 37 and that should cancel with the denominator 74 leaving a 2 there in the denominator...
anonymous
  • anonymous
-37i/2.. :D
anonymous
  • anonymous
not quite...
anonymous
  • anonymous
|dw:1332970366004:dw|
anonymous
  • anonymous
oh... my bad. I understand.

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