kaidyncarnes2296
kaidyncarnes2296 kaidyncarnes2296
  • 11-12-2020
  • Mathematics
contestada

The expression on (3+i)(4+5i) can be written in form a+bi, where a and b are integers. What are the values of a and b? (Show your work please)

Respuesta :

VectorFundament120
VectorFundament120 VectorFundament120
  • 11-12-2020

[tex](3 + i)(4 + 5i) \\ 12 + 15i + 4i + 5 {i }^{2} \\ 12 + 19i - 5 \\ 7 + 19i[/tex]

Therefore, a is 7 aka real part and b is 19 which is imaginary part.

Answer Link

Otras preguntas

Why is DNA frequently found associated with protein inside cells
Which term best describes the relationship between the leopard seals and crabeater seals?    A.parasitism  B.predation  C.competition  D.mutualism
why did the spanish and portuguese launch voyages of exploration?
Humans get which of the following kinds of products from plants? a. medicines b. dyes c. rubber d. all of the above
33 students are in the band.there are 6 more 5th grade students than 3rd grade students. There is an equal number of 3rd grade and 4th grade students. How many
I need a sentence with the word Fate in it!
is 0.1km greater than 10mm?
12 times the square root of 2 equals ?
A piece of ribbon 4 yards long is used to make bows requiring 15 inches of ribbon for each. What is the maximum number of bows that can be made?
The cost to rent a construction crane is $750 per day plus $250 per hour of use. What is the maximum number of hours the crane can be used each day if the renta