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2016ers Chit-Chat Thread (2 Viewers)

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DatAtarLyfe

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@lee i pmed you but if you have time can you do it now? Its really pissing me off and its just one mark so you could probs do it by inspection
 

leehuan

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@lee i pmed you but if you have time can you do it now? Its really pissing me off and its just one mark so you could probs do it by inspection
Oh I just asked you for the mark allocation... if it's 1 then I'm missing something obvious hang on
 

leehuan

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Leehuan m8
Don't tell Mohammad my engrish name


that og black man look and B. Maccas
Fk
Just mclovin it ;)))

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I will if you don't treat senpai more properly
 

iforgotmyname

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Leehuan m8
Don't tell Mohammad my engrish name


that og black man look and B. Maccas
Fk
Just mclovin it ;)))

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Looks like that B.Maccas degree I got from mount druitt tafe is paying dividends.
 

DatAtarLyfe

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My offer still stands sien, ill tell you my name if you tell me yours
 

leehuan

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@DAL: Get InteGrand or someone to help I'm missing something really obvious here that probably relates to the circle geometry theorem

"The angle subtended to the centre of the circle is twice the angle subtended to the circumference on the same arc"

Actually, wait, after I just typed that... note that the two tangents to the ellipse are also tangents to the circle...
Therefore, the normals intersect at the centre of the circle. Because the normal (the line perpendicular to the tangent) is nothing more than the diameter produced!

What confuses me, is exactly how the equation of the second normal can be derived so quickly. Still sounds like a 2 mark method and not 1.

Screen Shot 2016-03-25 at 10.23.30 PM.png
 

Sien

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Looks like that B.Maccas degree I got from mount druitt tafe is paying dividends.
Lookin hot in that maccas uniform
i rate 11/10

My offer still stands sien, ill tell you my name if you tell me yours
Lmao you know my English name? If you know it, take this to pm 1 on 1
and nek wll lol

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iforgotmyname

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Lookin hot in that maccas uniform
i rate 11/10



Lmao you know my English name?

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The moment when you realise I worked for hungry jacks at one point in my life.
 

DatAtarLyfe

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@lee so if the normal at P passes through the centre of the circle, i assume you make y=0 and solve for x, but how do i know that the centre lies of the x-axis. Hypothetically, if the centre were at (h,k) instead of
(h,0) how would i work out the centre?
 

Paradoxica

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Interesting time for my phone's battery to have gone flat. Anyway

Not sure if Carrot is telling me to remove that (will do so anyway I guess). and yes I apologised to mcchicken :( poor girl deserved nothing

@DAL maybe tomorrow if nobody else does it. Inbox me the question so that I have a notification to get back to tomorrow morning.
Carrotsticks wants some banter to watch.

BOS is less dramatic nowadays.
 

leehuan

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@lee so if the normal at P passes through the centre of the circle, i assume you make y=0 and solve for x, but how do i know that the centre lies of the x-axis. Hypothetically, if the centre were at (h,k) instead of
(h,0) how would i work out the centre?
Probably has something to do with the fact the ellipse was centred at the origin already. Then because P and Q have y-intercepts the negative of each other...

Midpoint of chord PQ is going to be on the y-axis and then we know that only the line from the centre of the circle bisects the chord perpendicularly?

Yeah it's ok InteGrand is reading this thread now...
 
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