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OpenStudy (osanseviero):
A friend told me that _x_x_ (x is multiplication, and the _ is a number or variable) can be simplified as n!...what are the hidden variables?
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OpenStudy (2bornot2b):
You know, if you use the equation editor to type the mathematical expressions, it will be easier for us to answer
OpenStudy (osanseviero):
wait let me do this again
OpenStudy (osanseviero):
\[z \times z \times z\] can be simplified as z! I need a formula with factorials to determine a number of the Pascals triangle without adding them...
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