radomes.openskiesproject.org
Anonymous Anonymous
  • 01-03-2016
  • Mathematics
Answered

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

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 01-03-2016

remember that
i^2=-1 so

f(i)=i^3-2i^2
i^3=i^2 times i=-1 times i=-i

2i^2=2(i^2)=2(-1)=-2


f(i)=-i-(-2)
f(i)=-i+2

answer is -i+2 or 2-i

Answer Link

Related Questions

1718 89 equal out to
The eleventh term of the sequence is 361224
A computer program in Shannons computer carries a single mathematical operation in 15106 seconds How much time would the program take to complete 25103 mathemat
what is the mass in grams of 173 moles CaH2
three friends go to a local farmers market latasha spends 335helen spends4times as much as latasha Dee spends 750 more than Helen how much did Dee spend
How many balls do you have to move for the triangle to point in a different direction A 5 B 2 C 4 D 3
Convert the volume 332 L to the unit m3 000332 m3 0332 m3 00332 m3 3320 m3
The gradual change in an ecosystem in response to environmental change is called succession From what you have learned how is Mount St Helens an example of succ
2 What value for c will make the expression a perfect square trinomial x2 7x c 494 72 72 494
Lateral area of a prism