shermanmb22 shermanmb22
  • 14-09-2018
  • Mathematics
contestada

Simplify. 4sqrt(-99)

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gmany
gmany gmany
  • 16-09-2018

[tex]4\sqrt{-99}=4\sqrt{9\cdot(-1)\cdot11}=4\sqrt9\cdot\sqrt{-1}\cdot\sqrt{11}\\\\=4\cdot3\cdot i\cdot\sqrt{11}=\boxed{12\sqrt{11}i}[/tex]

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