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OpenStudy (anonymous):
Help me solve the equation:
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OpenStudy (anonymous):
\[(n!) ^{2} / ( (n-1)! (n-2)! )\]
OpenStudy (anonymous):
you should remember n!=n*(n-1)!=n*(n-1)*(n-2)!
OpenStudy (anonymous):
^Yes I do
OpenStudy (ajprincess):
|dw:1336504973465:dw|
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