carboy4771 carboy4771
  • 22-10-2019
  • Mathematics
contestada

2. Describe how to use the conjugate to divide 2 − i by 3 + 2i, and then find the quotient.

Respuesta :

boffeemadrid
boffeemadrid boffeemadrid
  • 22-10-2019

Answer:

[tex]\frac{4}{13}-\frac{7}{13}i[/tex]

Step-by-step explanation:

[tex]\frac{2-i}{3+2i}[/tex]

Multiply and divide by the conjugate.

The conjugate is the denominator with the sign of the complex number the opposite of the denominator.

[tex]\frac{2-i}{3+2i}\frac{3-2i}{3-2i}\\ =\frac{2\times (3-2i)-i\times (3-2i)}{3^2-(2i)^2}\\ =\frac{6-4i-3i+2i^2}{9+4}\\ =\frac{4-7i}{13}\\ =\frac{4}{13}-\frac{7}{13}i[/tex]

Quotient = [tex]\frac{4}{13}-\frac{7}{13}i[/tex]

Answer Link

Otras preguntas

HELP WHat is 13=x+5 = ?
what are some sports or activities you can do to improve your overall health
HAS THE HIGHER DENSITY oceanic trench OR continental slope?why
I need some help please :)
CAN SOMEONE PLEASE ANSWER THIS I WILL MARK YOU THE BRAINLIEST !!!
Conditioning is a process of learning associations. Please select the best answer from the choices provided Т F
1. Mike is making 8 ounces of spaghetti for his family of 4 people. How many ounces of cooked spaghetti will he need to serve 18 people? *
first person who asnwers get and gets it right wins brainliest.if you have 10 fish 5 drown and 3 come back to life how many fish do you have
What is the domain of the function shown in the graph below,?NO LINKS!! ​
The answer I got (4 +/- sqrt -68 over 6) is literally none of the answers. What did I do wrong??