fp2 complex numbers transformation Watch

Katiee224
Badges: 11
Rep:
?
#1
Report Thread starter 2 years ago
#1
Hey guys,

I'm have attempted this complex numbers transformations question and am not sure where I have gone wrong, I am meant to get an answer of u=1/3 for part c

Would really appreciate some help, ill attatch my working and the question incase anyone wants to have a look

ps excuse the scruffy writing and sideways picture
Attached files
Last edited by Katiee224; 2 years ago
0
quote
reply
TeeEm
Badges: 19
Rep:
?
#2
Report 2 years ago
#2
part b or part c?
0
quote
reply
Katiee224
Badges: 11
Rep:
?
#3
Report Thread starter 2 years ago
#3
(Original post by TeeEm)
part b or part c?
i meant part c apologies
0
quote
reply
TeeEm
Badges: 19
Rep:
?
#4
Report 2 years ago
#4
(Original post by Katiee224)
i meant part c apologies
rearrange for z
subtract 3i from both sides
mod both sides

Any good?
0
quote
reply
Ayman!
Badges: 12
Rep:
?
#5
Report 2 years ago
#5
(Original post by TeeEm)
part b or part c?
TeeEm, you're first!!
0
quote
reply
Zacken
Badges: 22
Rep:
?
#6
Report 2 years ago
#6
(Original post by TeeEm)
part b or part c?
am I too late?

1
quote
reply
TeeEm
Badges: 19
Rep:
?
#7
Report 2 years ago
#7
(Original post by aymanzayedmannan)
TeeEm, you're first!!
(Original post by Zacken)
am I too late?

At long last ....
Name:  V8.jpg
Views: 125
Size:  225.3 KB
0
quote
reply
Katiee224
Badges: 11
Rep:
?
#8
Report Thread starter 2 years ago
#8
hmm i will try the modulus method but I'm really not confident with transformations at all and only started them today

i don't understand where my attempt fell short however
0
quote
reply
drandy76
Badges: 12
Rep:
?
#9
Report 2 years ago
#9
I am too late to even ask if i'm too late, why me
0
quote
reply
DylanJ42
Badges: 18
Rep:
?
#10
Report 2 years ago
#10
(Original post by Katiee224)
Hey guys,

I'm have attempted this complex numbers transformations question and am not sure where I have gone wrong, I am meant to get an answer of u=1/3 for part c

Would really appreciate some help, ill attatch my working and the question incase anyone wants to have a look

ps excuse the scruffy writing and sideways picture
on your last few lines when plugging x and y into the circle equation you forgot to square them

ie you wrote  \displaystyle x + y = 6y instead of  \displaystyle  x^2 + y^2 = 6y

Edit: Your method isn't as easy as the modulus method imo, if you get confident with using modulus for these questions transformations will be very very easy for you, trust me
Last edited by DylanJ42; 2 years ago
0
quote
reply
X

Reply to thread

Attached files
Write a reply...
Reply
new posts
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • Sheffield Hallam University
    City Campus Postgraduate
    Wed, 17 Oct '18
  • Staffordshire University
    Nursing and Midwifery Undergraduate
    Wed, 17 Oct '18
  • Teesside University
    Undergraduate open day Undergraduate
    Wed, 17 Oct '18

If a uni gives me an unconditional offer they....

think I'm a brilliant applicant (534)
36.65%
are desperate for students (923)
63.35%

Watched Threads

View All