Edexcel FP3 June 2015 - Official Thread Watch

TeeEm
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#481
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#481
(Original post by ninjasinpjs)
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ninjasinpjs
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#482
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#482
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Any one happened to know why they are allowed to write z= k in 8B.

I think it is because z is not defined in the x3 equations so it should be a constant? , found my own explanation a bit strange.
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physicsmaths
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#483
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#483
(Original post by ninjasinpjs)
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Any one happened to know why they are allowed to write z= k in 8B.

I think it is because z is not defined in the x3 equations so it should be a constant? , found my own explanation a bit strange.
Its independant i think. For any z x,y are zero.

I am nkt definate as I havent looked in detail.
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ninjasinpjs
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#484
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#484
(Original post by physicsmaths)
Its independant i think. For any z x,y are zero.

I am nkt definate as I havent looked in detail.
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so does that mean z = k for the other eigenvectors ?
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rayquaza17
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#485
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#485
(Original post by ninjasinpjs)
so does that mean z = k for the other eigenvectors ?
I think it's because you have -2x+y=0, x-2y=0, and -x=0 and no equation involving z. This is something you kinda just need to memorise/know.

We couldn't conclude from this that z=k for the other eigenvectors, we would have to calculate it each time.
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ninjasinpjs
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#486
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#486
(Original post by rayquaza17)
I think it's because you have -2x+y=0, x-2y=0, and -x=0 and no equation involving z. This is something you kinda just need to memorise/know.

We couldn't conclude from this that z=k for the other eigenvectors, we would have to calculate it each time.
hey, thanks for clarifying!
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bwr19
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#487
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#487
(Original post by chemlover12)
Attachment 432943
Brilliant. Thanks a tonne!
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chemlover12
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#488
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#488
(Original post by bwr19)
Brilliant. Thanks a tonne!
Np 😊
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ninjasinpjs
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#489
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#489
(Original post by chemlover12)
Np 😊
Wow you sleep late


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chemlover12
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#490
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#490
(Original post by ninjasinpjs)
Wow you sleep late


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Right baxk at you, bro
Lol I actually just woke up
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ninjasinpjs
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#491
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#491
(Original post by chemlover12)
Right baxk at you, bro
Lol I actually just woke up
interesting, what does a chemlover do at this time of night =]?
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chemlover12
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#492
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#492
(Original post by ninjasinpjs)
interesting, what does a chemlover do at this time of night =]?
Lol play clash of clans 😂 and look through tsr. Wbu?
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ninjasinpjs
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#493
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#493
(Original post by chemlover12)
Lol play clash of clans 😂 and look through tsr. Wbu?
oh you play clash too?? i'm a level 93 clasher =], uhh watching exam solutions and youtube stuff really , not very productive
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chemlover12
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#494
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#494
(Original post by ninjasinpjs)
oh you play clash too?? i'm a level 93 clasher =], uhh watching exam solutions and youtube stuff really , not very productive
Omg?! Are you in a clan! If not, join us man. We'll be a level 5 clan after this war. I'm level 78. Lol. Did you just wake up as well or haven't you slept yet?
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ninjasinpjs
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#495
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#495
(Original post by chemlover12)
Omg?! Are you in a clan! If not, join us man. We'll be a level 5 clan after this war. I'm level 78. Lol. Did you just wake up as well or haven't you slept yet?
i'm in my brothers clan at the moment, we are a strong clan mostly friends/familly, only active on weekend though =p.

No i haven't slept yet, ill get my sleep after i'm done with this stuff. You, finished your exams?
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chemlover12
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#496
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#496
(Original post by ninjasinpjs)
i'm in my brothers clan at the moment, we are a strong clan mostly friends/familly, only active on weekend though =p.

No i haven't slept yet, ill get my sleep after i'm done with this stuff. You, finished your exams?
Ohh lol. Thts nice 😊.
Oh god. Nope. I have fp3 and d2 left.
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ninjasinpjs
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#497
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#497
(Original post by chemlover12)
Ohh lol. Thts nice 😊.
Oh god. Nope. I have fp3 and d2 left.
interesting, perhaps i should have picked d2 instead of fp3, although i'm starting to enjoy fp3 !

Where you hoping to study? [or will]
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chemlover12
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#498
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#498
(Original post by ninjasinpjs)
interesting, perhaps i should have picked d2 instead of fp3, although i'm starting to enjoy fp3 !

Where you hoping to study? [or will]
No, fp3 is the right choice of subject lol. D2 is easy but the methods are mind blowingly long. -_-' and definitions are so hard to remember. Fp3 is nice lol.

UCL for mathematics. You?
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ninjasinpjs
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#499
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#499
(Original post by chemlover12)
No, fp3 is the right choice of subject lol. D2 is easy but the methods are mind blowingly long. -_-' and definitions are so hard to remember. Fp3 is nice lol.

UCL for mathematics. You?
Hehehe, ok now im glad im taking fp3.

UCL compsci =]
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chemlover12
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#500
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#500
(Original post by ninjasinpjs)
Hehehe, ok now im glad im taking fp3.

UCL compsci =]
Oh nice!
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