feelingsopeachy
feelingsopeachy feelingsopeachy
  • 10-04-2022
  • Mathematics
contestada

If f(x) = x^3 - 2x^2 , which expression is equivalent to f(i)?

O -2 + i
O -2 - i
O 2 + i
O 2 - i

Respuesta :

loneguy
loneguy loneguy
  • 10-04-2022

[tex]\text{Given that,}~f(x)=x^3-2x^2\\\\f(i)=i^3-2i^2\\\\~~~~~~=i^2 \cdot i -2(-1)~~~~~;[i^2=-1]\\\\~~~~~~=-i+2\\\\~~~~~~=2-i[/tex]

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fwlandyn
fwlandyn fwlandyn
  • 10-04-2022
your answer would be 2-i, your welcome!!!
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