- #1
EngWiPy
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Homework Statement
Hello,
I have the following equation:
[tex]f(x)=\sum_{r=m}^{M_B}\,\sum_{i=0}^{M_B-r}\,\sum_{j=0}^{r+i}\,\sum_{k=0}^{j(N_B-1)}(-1)^{i+j}{M_B\choose r}{M_B-r\choose i}{r+i\choose j}\left(\frac{x}{C}\right)^k\,e^{jx/C}[/tex]
and I want to write it in the form of [tex]f(x)=1+R(x)[/tex]
Homework Equations
[tex]m[/tex] will be any number from 1 up to [tex]M_B[/tex], and [tex]f(x)=1-e^{x/C}[/tex] for [tex]M_B=N_B=1[/tex].
The Attempt at a Solution
I tried to extract the following parameters to have the 1 value:
[tex]r=M_B, i=0, j=0, k=0[/tex]
but after that I don't know what to do by the indices. It does not seem straightforward as one can see.
Regards