anonymous
  • anonymous
How do I simplify? 4/(1+i) the answer is supposed to be 2-2i ??
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
conflagerate the bottom....
anonymous
  • anonymous
multiply the top and bottom by the conjugate of (1+i) which is (1-i). Simplify.
amistre64
  • amistre64
\[\frac{4}{1+i} * \frac{1-i}{1-i}\]

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amistre64
  • amistre64
conjugate! thats the word I wanted lol
anonymous
  • anonymous
4-4i/1+i-i-i2 i2=1 so 4-4i/2 simplify to get 2-2i
anonymous
  • anonymous
i2=-1
anonymous
  • anonymous
Awesome, thank you so much for your help!
anonymous
  • anonymous
welcome from the both of us!

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