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OPTIONS
All integers
All integers where n ≥ -1
All integers where n ≥ 1
All integers where n ≥ 0

@SolomonZelman ;-; ?

Is it all integers?

Can you have \(\large a_{-1}\) ??

they are positive

yes, all positive integers, correct...

So its C?

So your answer choice is c, n≥1.

Thanks!

Also I can teach you how to put up ≥ ≤ ∞ and other symbols without copy pasting, want to know how?

it works on almost every site...

Is an arithmetic sequence always positive integers?

Now as far as your question....

Thanks !

These are the options:
-312,500
-12,500
62,500
1,562,500

idk

Yes

the common ratio is -.2 right?

oh, my fault

\(\large\color{black}{ \displaystyle {\rm r}=\frac{a_{n}}{a_{n-1}}}\)
this si the formula

I made a typo in my previous reply, but the rest of information is right

Is r=-.2 right?

lost?

oh I get it

yes, so r=?

r=-5

no

ok, w will show what it i and how it works (if you don't mind)