Pammie123cakess
Pammie123cakess
04-06-2014
Mathematics
contestada
how do I solve (3+i)(3-i)
Respuesta :
kate200468
kate200468
04-06-2014
[tex] (3+i)(3-i)=3(3-i)+i(3-i)=9-3i+3i-i^2=9-(-1)=\\\\=9+1=10[/tex]
Answer Link
kayt91
kayt91
05-06-2014
(3+I)(3-1)
-i^2+9=0
-I^2=-9
I^2=9
i= + or - 3
Answer Link
VER TODAS LAS RESPUESTAS ( 84+ )
Otras preguntas
PLEASE DONT DELETE 10x2 but really; Uh- is anyone else brainly just really messed up right now? Its not loading when i click on profiles- is this happening for
An example of a risky short term investment strategy is
A company that manufactures playing cards ensures the cards can be stacked in a deck and placed in a box to be sold. Which units are most appropriate for measur
8. A school official calculated that the school bus arrives by 8 a.m. 90% of the time. If the bus runs 200 days, on how many days can the school official expect
Does the sentence have a misplaced modifier? The modern form of golf was developed in Scotland. A. Yes B. No
What condition was the Marshall Plan of 1947 designed to address? A.the spread of fascism b.Political instability in Asia C.the collapse of colonialism d econom
Which of the following was NOT a use of paper in Ancient China. A. Padding B. Recording text C. Toilet paper D. Wall decorations
Scientists work to answer questions about ______________________ and ________________________ things in the natural world work. PLS FILL IN THE BLANK
There is 80% milk in 400 litre misture of milk and water. What will be the percentage of milk in the new mixture when 80 litre more water is added in the mixtur
“which sport do you prefer soccer or basketball is”that biased or unbiased question
