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muhammad9t5Best ResponseYou've already chosen the best response.2
you can solve it by rationalizing dw:1343807584287:dw
 one year ago

muhammad9t5Best ResponseYou've already chosen the best response.2
now multiply dominaters and nominators
 one year ago

Neo92Best ResponseYou've already chosen the best response.0
10i/10i =(0+10i)/(10i) =(0+10i)(10+i)/(10i)(10+i) do the remaining few calculations and tell me the answer..
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
100i + 10i^2/100i^2 ?
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
what should i do to get conjugate form ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Denominator part is right but need to solve further.. \[100  i^2 = ??\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[\large i^2 = 1\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
i need x+iy form.. :( confuse
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Yes you will get that.. Just have patience.. Tell me : \[100  i^2 = ??\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
The value of \(i^2 \) is 1..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Last one is right..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Similarly do it in the Numerator,,,
 one year ago

Neo92Best ResponseYou've already chosen the best response.0
@greysica i^2 = 1 therefore 100  (1) ==?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[100i + 10 i^2 = ??\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
100(1)+10(1)^2 = 100+10 =90 ? like this ?
 one year ago

Neo92Best ResponseYou've already chosen the best response.0
(100i  10) use the fact that i^2 = 1
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You can change i^2 there and not i.. remain i as such..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[\large 100i + 10i^2 = 100i + 10(1) = ??\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
ohh i see , 100i 10 ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Now you have to find this in the form z = x + iy.. So: \[\frac{10 + 100i}{101} \implies \frac{10}{101} + i \frac{100}{101}\]
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Here I have separated both.. does it look like x + iy ??
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
yes , i do understand . but my teacher already give me an answer for this , he said it should be 10+i and i must find the way to get 10 + i
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
See your teacher said to you want to solve this by using \(10 + i\) Here we have done the same ..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
The conjugate of \(10  i\) is \(10 + i\) So we have multiplied and divide it by the conjugate that is : \(10 + i\)
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
i dont understand . we've got 10/101+i100/101 and my teacher said 10+i as the answer
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
This will not be the answer for this.. Ask him again when you will meet him..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
10 + i is the conjugate for this..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
I think he just said to find conjugate so then the answer should be \(10 + i\)
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
okay ,how about this.. 11+2i / 4+3i I do some calculation and get 2+i as the answer but my teacher said the asnwer is 2i
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
okay i will write my calculation ..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Can you show me..??
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343814167411:dw
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343814339078:dw
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
50/25  i (25/25) 50/25 + i 2+i
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You are doing mistake of minus.. Let me understand what you did and what the way of your teacher to solve this complex numbers problems..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
dw:1343814575597:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
dw:1343814799716:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Can you once try this ?? Do calculations according to it.. Try once..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
dw:1343815363469:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
dw:1343815404009:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Here x1 = 11, x2 = 4 y1 = 2 and y2 = 3
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
yap , the asnwer is 2+i
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
ohh the formula from my book is wrong , omg ..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Is it clear to you now ??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
See i show you more properly how I do this types of problems..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[\frac{11 + 2i}{4 + 3i} \times \frac{4  3i}{4  3i} \implies \frac{44  33i + 8i  6i^2}{(4)^2  (3i)^2} \implies \frac{44  25i 6(1)}{169i^2}\] \[\frac{44  25i + 6}{16  9(1)} \implies \frac{50  25i}{16 + 9} \implies \frac{50  25i}{25} \implies \frac{50}{25}  i \frac{25}{25} \implies 2  i\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
okay , thank you !! if u dont mind , i still have a little confuse , if z1/z2 = x1+iy1/x2+iy2 how about z2/2z1 ? is that means .. wait i draw
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343816101532:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
You have to multiply and divide by the conjugate.. Do you know how to find conjugate of a complex number ??
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343816319564:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
yes well done.. Need not to multiply 2.. You can simply do this: dw:1343816404418:dw
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
hmm i see .. i really suck at this actually .. but i try to understand .. wait i try to do some calculation, thank you btw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Take your time.. Welcome dear..
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343817123248:dw there is i^2
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343817171131:dw and dissapear in this .. where is i^2 ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
dw:1343817264875:dw
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
\[\large y_1y_2(i^2) = y_1y_2(1) \implies \color{blue}{+y_1y_2}\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
ohh I understand , so i^2 always meaning 1 in compleks form ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.1
Remember: \[\large i = \sqrt{1}\] So need to change \(i\).. \[\large i^2 = 1\] \[\large i^3 = i\] \[\large i^4 = 1\]
 one year ago

greysicaBest ResponseYou've already chosen the best response.0
dw:1343817500482:dw is that correct ?
 one year ago