S-expression: Difference between revisions
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m →Mathematical derivation: correction |
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&= \frac {k^2}{(k + 1)^3 (k - 1)} \cdot (k + 2)k \\ | &= \frac {k^2}{(k + 1)^3 (k - 1)} \cdot (k + 2)k \\ | ||
&= \frac {k^3}{(k + 1)^3} \cdot \frac{(k + 2)}{(k - 1)} \\ | &= \frac {k^3}{(k + 1)^3} \cdot \frac{(k + 2)}{(k - 1)} \\ | ||
&= \frac {(k + 2)/(k - 1)}{((k + 1)k)^3} | &= \frac {(k + 2)/(k - 1)}{((k + 1)/k)^3} | ||
\end {align} | \end {align} | ||
</math> | </math> | ||