express 6! , 7C2 and 8P3 as a product

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`(6!)=6*5*4*3*2*1=720`

`7C2=(7!)/(2!*(7-2)!)=(7*6*5*4*3*2)/(2*5*4*3*2)=`

`(7*6)/2=7*3=21`

`8P3=(8!)/((8-3)!)=(8!)/(5!)=6*7*8=336`

 

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