Akr3059 Akr3059

19-04-2020
Mathematics

contestada

Multiply and simplify the following complex numbers: (1 + 2i) x (1 - 4i)

Respuesta :

Аноним Аноним

19-04-2020

Answer:

9-2i

Step-by-step explanation:

(1 + 2i) * (1 - 4i)

(1*1)-(1*4i)+(2i*1)-(2i)*(4i)

(1)-(4i)+(2i)-(8i^2)

i^2 = -1

1-4i+2i+8

1-2i+8

9-2i

Answer Link

Otras preguntas

KFind the slope-intercept form of the line whose slope is 3 and that passes through the point (-6,12).The equation of the line is(Type your answer in slope-inte

Question 2 of 10We can better understand a blog's content by:A. knowing its HTML.B. exploring its context.C. memorizing its coding.D. criticizing its fonts.SUBM

Critical Lenses:Question 2What critical lens focuses mainly on how the time period in whichan author wrote may have influenced his or her work?Select one:O Hist

Conclusion primary, secondary and tertiary

what happen to the persident

Which is not a concern that socially responsible consumers have?environmental impactOcharitable activitiesproduction costslabor practices

What statement best describes the rule of Japanese emperors?

1. How should you organize your details when you want to emphasize certain key points?Oin chronological orderin increasing order of importancein Nestorian order

1. How should you organize your details when you want to emphasize certain key points?Oin chronological orderin increasing order of importancein Nestorian order

Identify which of the following quantities or numbers functions as a subject and as a single unit or group in the passage below. The new restaurant had been ope