dasialv03 dasialv03

14-02-2020
Mathematics

contestada

Multiply and simplify the following complex numbers: (5+2i)⋅(−5−i)

Respuesta :

jimrgrant1 jimrgrant1

14-02-2020

Answer:

- 23 - 15i

Step-by-step explanation:

Given

(5 + 2i)(- 5 - i ) ← expand the factors using FOIL

= - 25 - 5i - 10i - 2i² → i² = - 1

= - 25 - 15i + 2

= - 23 - 15i

Answer Link

Otras preguntas

Please help me out with this question thank you ❤️

is the statement true or false?: The inverse is the negation of the conditional.(I think its false, but I'm unsure.)

is it easier to cure animal epidemics of human epidemics

23. 18+ (5 + 6m)25.10y(7) how do do this

Help me [tex]\sqrt{x}*e^{x}[/tex] differentiate

Assume that a sample is used to estimate a population proportion p. Find the 99% confidence interval for a sample of size 229 with 44 successes. Enter your ans

Liang Company began operations on January 1, 2016. During its first two years, the company completed a number of transactions involving sales on credit, account

what is a specific metaphor used in " Life without go-go boots" and Explain how the writer uses this metaphor to convey the theme of the story.

what is the answer of 7% to the number of 78 of the percent

How does the quotient 10.5 : 1.5 compare to the quotient 105 = 15? Explain.