Question

f(z)=(3*z+1)/(z+4*i)
f(2+1)= ?
Please help,I am founding fault result.

Answer 1

f(3)=(3*3+1)/(3+4i)=10(3-4i)/25=6/5+4i/25

Answer 2

was it f(2+i) or f(2+1) = f(3)?

Answer 3

Sorry! it's f(2+i)!

Answer 4

factorial thats scary

Answer 5

i know thats an exclamation mark

Answer 6

\[f(2+i)=\frac{3(2+i)+1}{2+i+4i}\]
what exactly do you want?
you seem to be in upper level class so what should i write this as
or i mean what is the goal

Answer 7

scanning solution now, answer in sec....then breakfast >.>

Answer 8

im gonna have a fruit smoothie
joe what state do you live in?

Answer 9

Texas (sadly)

Answer 10

i live next door

Answer 11

solution, might be wrong, i think its right though. hunger has adverse effects on math.

Answer 12

so im sadder

Answer 13

I am founding (7+3i)/(2+5i) but the answer is 1-i.

Answer 14

next door? Louisiana? i think thats spelled right

Answer 15

no arkansas

Answer 16

LOL i added wrong. 14+15 is 29, not 39

Answer 17

see we arent all hicks

Answer 18

you are on the right path alexis, you just need to get the complex number out of the denominator of that fraction.

Answer 19

thats true, we all arent hick lolol

Answer 20

I was never think do mutliply with (2+5i).
Thanks a lot guys! :D

Answer 21

\[\frac{7+3i}{2+5i}*\frac{2-5i}{2-5i}=\frac{14-35i+6i-15i^2}{4-5i^2}\]

Answer 22

lol

Answer 23

go eat your breakfast

Answer 24

alright.....breakfast, i'll see you guys later lol

Answer 25

I hope you will be here to answer and at my next questions :D lol

Answer 26

are you in algebra?

Answer 27

im confused because some of these questions seems algebra like and some look little different

Answer 28

Yes,Algebra. Coplex part.

Answer 29

complex part?

Answer 30

At complex chapter.

Answer 31

still up

Answer 32

yep my hours are messed up

Answer 33

wow you should get some sleep. not good to stare at computer all night

Answer 34

i watched the racoons in backyard at 5 ish

Answer 35

raccoons in the back yard?!

Answer 36

i put cat food out for the wild cats but i seen like 5 racoons gang bang it this morning

Answer 37

they are interesting

Answer 38

Answer to my new question :D

Answer 39

wild cats! raccoons! what in the world? any opossums?

Answer 40

k

Answer 41

i would think the cats would scare off the raccoons

Answer 42

yes i see opossums around here

Answer 43

i thought you were on the west coast. shows you what i know

Answer 44

you doing complex variables problems?

Answer 45

Alexis please review the multiplication of the denominator:
(2+5i)(2-5i). It is not:\[4-5i ^{2}\]

Answer 46

because its 4-25i^2 lol