Question

help with math please

Answer 1

@jhonyy9 @Laylalyssa @darkknight

Answer 2

what do you think the answer is?

Answer 3

\(\color{#0cbb34}{\text{Originally Posted by}}\) @sak123
what do you think the answer is?
\(\color{#0cbb34}{\text{End of Quote}}\)
i really dont know

Answer 4

can sb help

Answer 5

ok

Answer 6

do you know what mean ,,conjugate of " ?

Answer 7

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
do you know what mean ,,conjugate of " ?
\(\color{#0cbb34}{\text{End of Quote}}\)
kinda not really tho

Answer 8

you need eliminate the term of i from denominator so in this way you need multiplie top and bottom by conjugate of denominator

Answer 9

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
you need eliminate the term of i from denominator so in this way you need multiplie top and bottom by conjugate of denominator
\(\color{#0cbb34}{\text{End of Quote}}\)
ok thank you

Answer 10

so what will be the conjugate of 8 +2i ?

Answer 11

10?

Answer 12

no

by what term you need multiplie the 8+2i to eliminate the term of i ?

Answer 13

use formula

a^2 -b^2 = (a-b)(a+b)

Answer 14

oh then the answer is 8+2i

Answer 15

no

Answer 16

no\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9

\(\color{#0cbb34}{\text{End of Quote}}
im so confused

Answer 17

you need multiplie the 8+2i by conjugate to elimine the term of i

Answer 18

using formula

a^2 -b^2 =(a-b)(a+b)

8+2i multiplie by 8-2i so what will get ?

Answer 19

2i+8
=8+2i

Answer 20

It is 3/8 – 5i/2 because if you do +,- then you get negative right? or is it the other way around

Answer 21

multiplie top and bottom by 8 -2i

Answer 22

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
multiplie top and bottom by 8 -2i
\(\color{#0cbb34}{\text{End of Quote}}\)
ight

Answer 23

so what will get ?

Answer 24

(3-5i)(8-2i)= ?

Answer 25

i tried divide and multiply just in case

Answer 26

and in denominator will be

(8-2i)(8+2i) = 64 - (-4) = ?

Answer 27

multiply-14 - 46 i

Answer 28

divide-3 + 1.37500 i

Answer 29

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
(3-5i)(8-2i)= ?
\(\color{#0cbb34}{\text{End of Quote}}\)
so this will be 24 -6i -40i +10(-1) = 24 -46i -10 = 14 -46i
this will get in numerator

Answer 30

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
(3-5i)(8-2i)= ?
\(\color{#0cbb34}{\text{End of Quote}}\)
so this will be 24 -6i -40i +10(-1) = 24 -46i -10 = 14 -46i
this will get in numerator
\(\color{#0cbb34}{\text{End of Quote}}\)
ok

Answer 31

\[\frac{ 14 -46i }{ 68 } = ?\]

Answer 32

by what can you simplifie top and bottom ?

Answer 33

by 2 and so will get

\[\frac{ 7 -23i }{ 34 }\]

Answer 34

sorry it lagged me out

Answer 35

do you see now the right choice ?

Answer 36

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
do you see now the right choice ?
\(\color{#0cbb34}{\text{End of Quote}}\)
yes thank u so much

Answer 37

\(\color{#0cbb34}{\text{Originally Posted by}}\) @jhonyy9
do you see now the right choice ?
\(\color{#0cbb34}{\text{End of Quote}}\)
i appreciate it

Answer 38

np

anytime

Answer 39

bye bye