How do you simplify $3times(11!)/(7!4!)$ ?

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Answer 1 · 2016-07-19T07:59:13

$990$

$(3xx11*10*9*8*7!) / (7!*4*3*2*1 )=(cancel3xx11*10*9*8*cancel(7!)) / (cancel(7!)*4*cancel3*2*1 )$

= $(11*10*9*cancel8 )/(cancel(4*2))$

= $11*10*9$

= $990$

How do you simplify 3times(11!)/(7!4!)3times(11!)/(7!4!)?