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

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

10-04-2022

your answer would be 2-i, your welcome!!!

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