Re: Seven Step Series

```Bruno,
You overlooked the question at the bottom of the page that I tried
unsuccessfully to work out. Brent supplied the answer but what I was looking
```

----- Original Message -----
From: Bruno Marchal
Sent: Friday, July 24, 2009 4:48 AM
Subject: Re: Seven Step Series

a^n * a^(-m) = a^(n-m)

Again, verify this on simple example of your own.

OK:  If a=10   and n=3 and   m=4  Following the formula above    "a^n *
a^(-m)"   ,I get as the first half of the equation:

10^3 * 10/4 =  1000 x 2.5=  2500   but for the second half   "a^(n-m)
I get:

10^(n-m)=  10^ -1=  10/1

which of course makes no sense at all.     Where did I go wrong?

Bruno

http://iridia.ulb.ac.be/~marchal/

http://iridia.ulb.ac.be/~marchal/

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