Question

HELP PLEASE

Answer 1

Is\[b_n = \frac{ 1 }{ n7^n }\]

Answer 2

That seems fine.

Answer 3

@agent0smith So would this be correct then?

Answer 4

Looks good to me.

Answer 5

@agent0smith Can you check if i answered these correctly?

Answer 6

Before I submit them. lol

Answer 7

@zepdrix

Answer 8

iiiii dunno.
Yah those are prolly right.
Go with that.

Answer 9

Lmaoo. Okie Thanks

Answer 10

#7 Was wrong. D:
What would it be then?

Answer 11

@mathmate

Answer 12

https://www.wolframalpha.com/input/?i=sum+from+n%3D0+to+infinity+of+(-1)%5En%2F(9n%2B1)

Answer 13

Oh :O
I guess there is some ... sort of test you can do :O

Answer 14

I *think* the alternating series makes 1/n convergent.

Answer 15

Ya that slipped my brain :O Doh!

Answer 16

Would it be absolute convergence or conditional convergence?

Answer 17

I don't remember much about conditionally convergent.

Answer 18

Eh Im unsure of which one it is xD

Answer 19

Dang... It was confitional. I got it wrong.

Answer 20

I googled it and it said "In mathematics, a series or integral is said to be conditionally convergent if it converges, but it does not converge absolutely." which is not helpful but: http://tutorial.math.lamar.edu/Classes/CalcII/AbsoluteConvergence.aspx

So it'd be conditional cos the abs value won't converge.

Answer 21

Conditional*

Answer 22

Aw...Ok Thanks.