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[YellowRubberDuckie]

I'm having trouble writing this in set builder notation. SBN Sucks. Here's the problem
{1,4,9,16,25,36,49,64,81}
Can anyone help?
Duckie

[Cush]

1. 100?

just a guess, have no idea what SBN is (hated math)

[YellowRubberDuckie]

4. Set builder Notation.

It's like if you say
{1,2,3,4,5,6,7,8,9,10,11,12}
This is that in set builder notation: {x|x= N < 13)
And that says X such that x equals the natural numbers less than 13.
Duckie

[DieboldMustDie]

9. So wouldn't that be

{x² | x = N ≤ 9}?

[likesmountains 52]

2. math

100!

[Awsi Dooger]

3. Looks simple, increasing by 2 more every time

100, 121, 144, 169, etc.

The first number increased by 3, from 1 to 4. Every subsequent addition is 2 mored than the previous -- 5,7,9, etc.

[YellowRubberDuckie]

5. Well, I've figured out that every time they add the next number...

in the multiples of three.
1,4,9, etc...
1+3=4, 4+5=9, etc.
I just don't know how to say that.
Duckie

[salib]

7. 5 + 9 is not 16!

[ugarte]

6. x such that x = the squares of natural numbers less than 10

l squared, 2 squared, 3 squared, etc...up to 9 squared

[salib]

8. so it is

{x^2 | x <is element of> N and x < 10}

[YellowRubberDuckie]

11. Thanks, ya'll...

That was very helpful.
Duckie

[likesmountains 52]

10. math

You add the next ODD number...add 3, 5, 7 ,9 etc.

[Zing Zing Zingbah]

12. Set notations are dumb.

What class do you have do this for? Linear Algebra?

[YellowRubberDuckie]

13. Math Concepts