# infinitesimal amount

• Apr 24th 2012, 12:06 PM
fra
infinitesimal amount
k1+k2+k3.....+kn-(k1^2+k2^2+k3^2.....+kn^2) How can i solve it!?
• Apr 24th 2012, 12:13 PM
Plato
Re: infinitesimal amount
Quote:

Originally Posted by fra
k1+k2+k3.....+kn-(k1^2+k2^2+k3^2.....+kn^2) How can i solve it!?

There is no equation there. So nothing to solve.
So what is to be done there?
• Apr 24th 2012, 12:15 PM
fra
Re: infinitesimal amount
simplify in some way
• Apr 24th 2012, 12:29 PM
Plato
Re: infinitesimal amount
Quote:

Originally Posted by fra
simplify in some way

Well it could be written as $\sum\limits_{j = 1}^n {{k_j}\left( {1 - {k_j}} \right)}$.
Or there are many other possibilities.