GuSa11291 GuSa11291

06-04-2016
Mathematics

contestada

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

Respuesta :

Leooooo Leooooo

06-04-2016

i=√-1 and all the steps are there

Ver imagen Leooooo

Answer Link

olemakpadu olemakpadu

06-04-2016

f(x) = x³ - 2x².

f(i) = i³ - 2i².

i = √-1.

i³ = (√-1)³ = √-1 * √-1 *√-1 = -1*√-1 = -√-1 = -i

i² = (√-1)² = √-1 * √-1 = -1

f(i) = i³ - 2i² = -i - 2(-1) = -i + 2

f(i) = 2 - i

Answer Link

Otras preguntas

Choose the correct figure of speech. the lining of john's new jacket felt like a kitten's fur. a.simile b.metaphor c.personification

A pipe is leaking out 1.5 cups per day about how many gallons per week is a pipe leaking

how do i write i'm excited in spanish using estar and tener expressions from this lesson to help Andrea better understand what you say.

In what type of change is matter conserved? select one: a. physical only b. chemical only c. physical and chemical

What 1803 u.s. supreme court case assessed the constitutionality of legislation passed by congress??

What is it called that is solid inorganic matter found in the earth that breaks down when weathered?

m(n)=350/n. What is the practical domain? N is the number of people in a band

4/9 x 3/8, is each product would be less than or greater than the first factor

Which of the following in the best estimate for 78x62?(1)4200(2)4800(3)4900(4)5600

Solve z2 – 2z – 35 = 0 using the zero product property.

good job