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  • 08-01-2020
  • Mathematics
contestada

a. -12 5
b. -12 -
c. 12. (-4)
d.-12. (-5)

Respuesta :

md2266123
md2266123 md2266123
  • 08-01-2020

Step-by-step explanation:

  1. -12=12i^2, 5
  2. -12-=12i^2*i^2
  3. 12(-4)=-48=48i^2
  4. -12(-5)=60
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