CactusCatey
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  • 18-09-2020
  • Mathematics
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4+2i/2−i solve for this expression​

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kelsonm3420
kelsonm3420 kelsonm3420
  • 18-09-2020

Answer: [tex]\frac{6+8i}{5}[/tex] [tex]or[/tex] [tex]\frac{6}{5}+\frac{8i}{5}[/tex]

Step-by-step explanation:

Multiply the numerator and denominator of [tex]\frac{4+2i}{2-i}[/tex] by the conjugate of  [tex]2-i[/tex] to make the denominator real.

[tex]\frac{4+2i}{2-i}*\frac{2+i}{2+i}[/tex]

Multiply using the distributive property (foil method)

[tex]\frac{6+8i}{5}[/tex]

Answer: [tex]\frac{6+8i}{5}[/tex] [tex]or[/tex] [tex]\frac{6}{5}+\frac{8i}{5}[/tex]

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