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alexwee123 Group TitleBest ResponseYou've already chosen the best response.0
ugh vectors :/
 2 years ago

alexwee123 Group TitleBest ResponseYou've already chosen the best response.0
well i fail at almost anything related w/ 3d so can't help u here :(
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
it's k. thanxx anyway.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
dear can u attach graph of this ?
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I dnt hav it. I hav only the question. Am sorry. :(
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
ok let's try to solve it step by step together .
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
dw:1337928984058:dw
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I drew this part. Bt where do v place k?
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
i just think about it .
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
do the alpha beta has special meaning or they are just coefficient ?
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
they are just coefficients.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
ok we suppose that its in the shape like this
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
can u plzz show me the next step if u dnt mind.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
dear i'm thinking .
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
dear for writing the plane we need a point and a line which cross the plane am i right ?
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
u mean for writing the eqn of the plane? bt v can write it if v knw the position vectors of thr three points isnt it?
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
yes so u know out and in multiple .
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
if u multiple out and b and like this for others plane u have the line and u have the point .
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
sorry I didnt get u?
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
take a look at it : http://en.wikipedia.org/wiki/Cross_product
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
@Callisto dear i need help here
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I hav studied cross product. I dnt get where u apply it here. Am so sorry for disturbing u. Can u plzz explain it a bit more.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
i'm not sure i ask a friend for help but what i said is this :
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
in our question we have a b c vectors , for each plane if u cross product both of them u get the line ortoghonal to the plane and u have the point i mean a1 b1 and the other
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
i tried bt nt getting t. can u plzz help me dear?
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
u know , i'm not sure about the solution .
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
oh k. Am sorry.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
i's so sri because i can't help u . but think about my idea . what if we suppose our space with 3 vector a b c instead i j k ? could we find out the answer ?
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
let me try and see.
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
dear is it a special tetrahedron ? i mean symmetric or ortoghonal ?
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
if it has any special feature we can use them .
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
It is nt given. :(
 2 years ago

Roya Group TitleBest ResponseYou've already chosen the best response.1
i'm not good at english but is it like this ? http://en.wikipedia.org/wiki/File:Tetrahedron_flat.svg
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
No problem. Bigg thanxxx for trying to help me.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
Here is how to write the planes of the tetrahedron using vecors I think.
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I wrote the equations of planes as follows. dw:1337970519951:dwdw:1337970602748:dw
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I wrote it so cos the equation of a plane through three points is dw:1337970955268:dw were r is p.v of any point R on the required plane, a,b and c are p.v of the given points A,B, and C.
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
Am I right @timo86m
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
seems right use it to prove those things it says.
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
bt that's the place I am stuck.
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I got the answer for the first part.:0
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
for 1 you can just take vector D to D1 Use vector addition and it will equal RHS
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
this is a tough one :) lol
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
I did it in this way. Let the position vector of D1 with respect to D be d1. Since D1 lies in the plane ABdw:1337972129746:dw and since DD1//DKdw:1337972217587:dwdw:1337972258266:dwdw:1337972326958:dwdw:1337972383792:dw Such a lengthy method.
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
@timo86m if u dnt mind can u help me to solve the third and fourth part.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
oh Sorry I dont think i can
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
it's k. I got an answer. If I make an adjustment to that I am getting it right. Bt am nt sure if I am right. Anyways thanxxx a lot for coming to the rescue.
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
LOL I did nothing :P It was all you smartypants
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
you did it all :) really
 2 years ago

ajprincess Group TitleBest ResponseYou've already chosen the best response.1
thanxxx for the medal.:)
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
I am proud of you :)
 2 years ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
Bring on another q :D Make it easier this time please :P
 2 years ago
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