so do they want something like this? If I'm not using the .7171717, what will the beginning of my proof look like? Will be it to prove (a-ar^n+1)/(1-r) converges to a/(1-r)?
oh damn... yeah, i didn't use cauchy for that. I just did this. But I'm guessing i'll need cauchy.
Wow, you're in europe! That's awesome, where i am in the US it's 10:43pm!
If no one else chimes in, what should i do? Only because i need to get some sleep myself.. This assignment is due 6...
k, but if i pick my N as blah blah +1 i don't get a nice = E in the end. I get 1/100E. But if i just keep blah blah without the +1 it works out, like below:
ok, so how would the "string of inequalities" look when i enter in big N? In all of the examples I've done, the string ended with something like
if N=90/361E...
90/361n < 90/360N < 90/360(90/361E) = E
but in this problem I'm not getting the last thing to be =E
yeah that was an error... if you only knew how much crap i have scattered around me right now... so is this how i write the proof? if not, can you point out or fix the errors?
can anybody tell me where my cauchy proof doesn't look right so i can fix it??
And how to i answer the "determine the conditions on a and r..." question?
Fredrik, I'm sorry but I'm not following you and i don't have any more time to work on this. I HAVE AN EXAM TOMORROW MORNING. I haven't even started studying for it yet because i keep running around aimlessly on this! I specifically posted on here to get HELP and I'm just getting more confused...
...so what's that mean? huh?
Can you just tell me what part of the N i calculated above is wrong? And how i can make it right? ie remove the denominator, add 1 to it, etc??