Question 898416
(A)
{{{ ( n! + (n - 1)! ) / (n + 1)! }}}
Divide top and bottom by {{{ ( n - 1 )! }}}
{{{ ( ( n! / ( n - 1 )! ) + ( ( n - 1)! / ( n + 1 )! ) ) / ( (n + 1)! / ( n - 1 )! ) }}}
{{{ ( n  + 1 ) / ( n*( n + 1 ) ) }}}
Divide top and bottom by {{{ n + 1 }}}
{{{ 1 / n }}}
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(B)
{{{ (n!-(n-1)!)/(n-2)! }}}
Divide top and bottom by {{{ ( n - 2 )! }}}
{{{ ( n*( n - 1 ) ) - ( n - 1 ) }}}
{{{ ( n  - 1 )*( n - 1 ) }}}
{{{ ( n - 1 )^2 }}}