# fp2 complex numbers transformationWatch

#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
Last edited by Katiee224; 2 years ago
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2 years ago
#2
part b or part c?
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#3
(Original post by TeeEm)
part b or part c?
i meant part c apologies
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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?
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2 years ago
#5
(Original post by TeeEm)
part b or part c?
TeeEm, you're first!!
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2 years ago
#6
(Original post by TeeEm)
part b or part c?
am I too late?

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2 years ago
#7
(Original post by aymanzayedmannan)
TeeEm, you're first!!
(Original post by Zacken)
am I too late?

At long last ....
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#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
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2 years ago
#9
I am too late to even ask if i'm too late, why me
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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

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
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