How to prove that ?

Printable View

- August 6th 2009, 08:41 AMSoldadoSum
How to prove that ?

- August 6th 2009, 09:32 AMred_dog
Let

Then

Add the equalities:

- August 6th 2009, 12:24 PMSoldado
Thanks but, I don't see how did you get ? I can't follow that equality, I was trying to figure out by myself but I couldn't.

- August 6th 2009, 01:08 PMAmer