2x Maths Questions (1 Viewer)

[Alkanes]

man this guy can gtfo. atleast post up the solutions. i asked him if my solutions were right. doesn't even reply... go to hell.

 

[SpiralFlex]

He's just a bit caught up with the first question. Your solution is right.

 

[AAEldar]

This is what I did, I can't see what I did wrong, fresh set of eyes might.

 

[SpiralFlex]

This is what I did, I can't see what I did wrong, fresh set of eyes might.

Are you sure it fits into the equation?

 

[AAEldar]

I know it doesn't, that's why I posted it to see if anyone sees why it doesn't fit.

Ohexploitable: I re-arranged them?

 

[SpiralFlex]

I think when you subbed 1 into 7, you did it wrong. Shouldn't it equal to -2?

 

[AAEldar]

I think when you subbed 1 into 7, you did it wrong. Shouldn't it equal to -2?

Nah because I divided it by 2 to get rid of the 2 in front of the pq+pr+qr.

 

[SpiralFlex]

Uh, I thought it was:

3 + 2(pq + pr + qr) = -1

2(pq + pr + qr) = -4

(pq + pr + qr) = -2

 

[SpiralFlex]

My mistake.

 

[AAEldar]

Ah I know where I went wrong. Supposed to be:



That sucks.

Wait, now I don't even know. I'm so confused.

 

[SpiralFlex]

Yes that's what I got, so I was right?

 

[Alkanes]

hmm i cbf doing it.. but have any of u guys tried changing equation (1) p^2 + q^2 + r^2 = 3 into (p+q+r)^2=3 then change it into ==> p+q+r = root 3.. Here's something that might help, you guys do it i cbb. =)

 

[SpiralFlex]

So there aren't any real solutions?

 

[SpiralFlex]

hmm i cbf doing it.. but have any of u guys tried changing equation (1) p^2 + q^2 + r^2 = 3 into (p+q+r)^2=3 then change it into ==> p+q+r = root 3.. Here's something that might help, you guys do it i cbb. =)

That's what AAElder did.

 

[AAEldar]

hmm i cbf doing it.. but have any of u guys tried changing equation (1) p^2 + q^2 + r^2 = 3 into (p+q+r)^2=3 then change it into ==> p+q+r = root 3.. Here's something that might help, you guys do it i cbb. =)

You can't just pull the powers of 2 out the front.

 

[Alkanes]

oh did he ? ahh my bad i didn't read wat others did except for exploitable where he was using complex numbers or someshit lol

 

[SpiralFlex]

I am adamant I came across this question the other day.

 

[Alkanes]

ahh yep yep wtf was i doing... sorry brain frozed for a minute.

 

[ohexploitable]

I'll say this once again, I solved it in the complex field, those are the only solutions, there are no real solutions.

 

[SpiralFlex]

I wonder who would be the first to get this question! Race ya.