duduye2000osklob duduye2000osklob
  • 04-07-2017
  • Mathematics
contestada

If a = 2 + i, and b = 3 – 2i, whats b/a?

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ghanami
ghanami ghanami
  • 04-07-2017
hello : 
b/a = (3-2i)/(2+i)
      = (3-2i)(2-i)/(2+i)(2-i)
      = (3-2i)(2-i)/(2²-i²) .......i² = -1 
      = (6-3i-4i -2)/5
      =(4 -7i)/5
b/a = (4/5)-(7/5) i 

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