Seudónimo
Seudónimo
01-02-2016
Mathematics
contestada
(3-5i)(2+9i)+(7+2i)(7-2i)
Respuesta :
Benjamin16
Benjamin16
01-02-2016
[tex]i^{2} = -1[/tex]
-----------------------------------------
[tex](3-5i)(2+9i)+(7+2i)(7-2i) = \\ \\ = 6 + 27i - 10i - 45i^{2} + 49 - 14i + 14i - 4i^{2} = \\ \\ =55 + 17i + 45 + 4 = \boxed{104 + 17i} [/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 26+ )
Otras preguntas
what are the disadvantages and advantages Germany have on our nation?
5-48÷4-4 What’s is the answer
What is a bomb when referring to substance abuse?
The authors of "The Strange-Looking Man" and the Field Hospital and Flying column wrote about similar subject matter, but one wrote a short story while the othe
I want to buy my mom a camera for Christmas.I found one at Best Buy for $189 with 25% off.I found the same camera in sears for $205 with 40% off. Which is the b
This is a political and economic group that was formed in 1992 to encourage cooperation between the 27 member countries.
Ok so another weird question! So if you know what google drive is and how to upload a video why does it keep adding hours! it keeps going up! right now it's at
LOOK AT PIC FOR PROBLEM - SELECT ALL THAT APPLY ‼️
9. Which value represents the largest weight? a. 3.58 metric tons b. 3.09 metric tons c. 3 2/3 metric tons d. 3 1/4 metric tons
According to the rules of the International CodeCouncil, one third of all committee members must be members of what?
