Proving Limit Exists with Cauchy Criterion for {X_n}

[sedaw]

need to prove there's limit by cauchy criterion

http://mathworld.wolfram.com/CauchyCriterion.html

the sequence: {X_n}=(10/1)(11/3)...(n+9/2n-1)

my try :

is that right ?

http://img155.imageshack.us/my.php?image=22221wl0.jpg

 

[sedaw]

??
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??
?
?

 

[mutton]

Your N is not fixed; it should depend on \varepsilon only.

What's s?
Why did you pick p = 1?

 

[sedaw]

Your N is not fixed; it should depend on \varepsilon only.

What's s?
Why did you pick p = 1?

give me a reason y i can't pick p=1

and bout the Sn
Sn= sum of the series from a1 to an

.

 

[HallsofIvy]

No one has to give you a reason why you can't pick p= 1. You are the one who is doing this. Please answer the question- why DID you pick p= 1?