n i f \frac { ( 2 n ) ! } { 3 ! ( 2 n - 3 ) ! } : \frac { n ! } { 2 ! – InterviewSolution

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1.	n i f \frac { ( 2 n ) ! } { 3 ! ( 2 n - 3 ) ! } : \frac { n ! } { 2 ! ( n - 2 ) ! } = 44 : 3
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