Hi Forum

Can someone help?

There's a question that states

But how was this thought?

Where could I find about this identity on the web?

The question is actually

Does it change anything by being Cartesian product?

Thanks:)

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- June 29th 2011, 05:44 AMZellatorLogarithms and factorial; identity
Hi Forum

Can someone help?

There's a question that states

But how was this thought?

Where could I find about this identity on the web?

The question is actually

Does it change anything by being Cartesian product?

Thanks:) - June 29th 2011, 05:58 AMSorobanRe: Logarithms and factorial; identity
Hello, Zellator!

Quote:

Note that: .

The left side becomes:

. .

- June 29th 2011, 06:15 AMArchie MeadeRe: Logarithms and factorial; identity
- June 29th 2011, 06:37 AMZellatorRe: Logarithms and factorial; identity
Then using we can see that

So

But that's kind of hard to see in the naked eye, thanks to you I will probably find it this forms easily from now on.

Hi Archie Meade,

The thing is, that the right form wasn't given, it had to be calculated, in order to find a better and easier way to solve the Cartesian Product.

:D - June 29th 2011, 08:12 AMArchie MeadeRe: Logarithms and factorial; identity
Ok,

well that's important to realise about factorials.

and so on.

Also, a very fundamental property of logarithms is

Then