rafilscorpionos6inx rafilscorpionos6inx
  • 11-07-2017
  • Mathematics
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how you guys solve these ?? multiplying and dividing complex??

how you guys solve these multiplying and dividing complex class=

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Banabanana
Banabanana Banabanana
  • 20-07-2017
[tex]i^2(2i^2-5)=-1(2(-1)-5)=-1*(-7)=7 \\ \\ i^2(3+i^2)=(-1)(3-1)=-1*2=-2 \\ \\ 2i(2i-i^3)=2i^2(2-i^2)=-2(2+1)=-2*3=-6 \\ \\ i(4i^3-i)=i^2(4i^2-1)=-1(-4-1)=5[/tex]
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