lets see if u can solve this

X = 1
Y = 11

Oh, wow sander. You are so smart!!!

sander:

Oh, wow sander. You are so smart!!!

Haha I hope I don't ruïn your day if I tell you the answer is {(x,y) E R ²: x+y = 12}
which is the set of all x and y that amount to 12 which also includes eg. (2,10) and (-4 16).

If I got you curious, here's some more
http://www.mathsisfun.com/sets/sets-introduction.html


Reinout

hmmmmmmmmm...... lol

Hi Reinout

I am not very familiar with set notation.

{(x,y) E R2: x+y = 12}

What does the E R2 stand for?

Thanks.

That is obvious a troll question lol

sadsfasfdfas:

That is obvious a troll question lol

Yes I agree. But sometimes we can still learn from questions such as these and there was no harm intended.

Reinout 'played' with the question.

My quiry arising from reinout's play was a serious question. I am still waiting fo an answer

That is one of the reasons I like it in here. I can answer most questions easily but some make me think.

Sometimes I am thinking about the mathematics and sometimes i am thinking about how best to teach it. I am very interested in both these slants.

Melody:

Hi Reinout

I am not very familiar with set notation.

{(x,y) E R2: x+y = 12}

What does the E R2 stand for?

Thanks.

epsR2.PNG

Alan:

Melody:

Hi Reinout

I am not very familiar with set notation.

{(x,y) E R2: x+y = 12}

What does the E R2 stand for?

Thanks.

epsR2.PNG

Thanks Alan, that makes sense, although I don't know why Reinout didn't write it as R ²
Is that how you would have written this set notation ?

Wow, my troll question went wild.... lol

lol, my troll question went way over the top. too many maths enthusiasts....

Wow, my troll question went way over the top.... too many maths enthusiasts out there....

Sorry, for posting the same thing three times. I just thought it had not come up, but i then later understood there was a page two....

sander:

Sorry, for posting the same thing three times. I just thought it had not come up, but i then later understood there was a page two....

Hi sander,
If you were a member you would have been able to delete the duplicate post. But, I guess that would not have suited your purposes very well anyway.