16n!/(n-1)! >5n!/(n-2)!

Question

16n!/(n-1)! >5n!/(n-2)!

Answer 1

16n!/(n-1)! >5n!/(n-2)!

16n>5(n-1)n

16n>5n^2-5n

5n^2-21n<0</p>

5n(n-21/5)<0</p>

 

 

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