Seudónimo Seudónimo
  • 01-03-2016
  • Mathematics
contestada

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

Respuesta :

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

Otras preguntas

what is 2/5 * 2 3/4 equal to​
3. (G.SRT.6) Using the triangle given below, determine the value for sin P, cos P, and tan P. in A. sin Pa cos P = tan P = P B B. sin P= 12 5 = cos P = , tan P
Evaluate the following if a = 3,b= -2 and c = 1 a3 - 2bc +5ac
Which of the following is not an example of​ third-degree price​ discrimination? A. Reservation pricing for each consumer. B. Discounted movie tickets for senio
If you want to convince your parents do you use "formal" language?​
explain how the ability to manage interpersonal conflict may help you deal better with interpersonal conflict amongst your friends​
plz help it's due tomorrow4.Congratulations! You won a free grill in a sweepstake! You know that you can fit a rectangular grill in your truck that has a width
The 5th wave AR quiz answer key??? Can anyone help
Explain Three obligations of a bursary.​
Amy has 2 1/2 kilograms of grapes on the scale at the grocery store. She then puts an additional 50 grams of grapes on the scale. What is the total weight, in g