Claudie782 Claudie782

05-07-2015
Mathematics

contestada

If f(x) = x3 – 2x2, which expression is equivalent to f(i)?

Respuesta :

HomertheGenius HomertheGenius

18-07-2018

We have to find f ( i ) for the function: f ( x ) = x³ - 2 x²

f ( i ) = i³ - 2 i²

We know that: i² = - 1 and i³ = - i

f ( i ) = - i - 2 · ( - 1 )

f ( i ) = - i + 2

The complex number is written in form: z = a + b i

Answer:

f ( i ) = 2 - i

Answer Link

kingtheking176 kingtheking176

29-06-2022

Answer:

D

2-i

Step-by-step explanation:

Answer Link

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