What is expand (n(n+1))/(n!) ?

The solution to expand (n(n+1))/(n!) is (n^2)/(n!)+n/(n!)

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expand (n(n+1))/(n!)

expand

\frac{n ( n + 1 )}{n !}

\frac{n ^{2}}{n !} + \frac{n}{n !}

Solution steps

\frac{n ( n + 1 )}{n !}

Expand

n (n + 1) : n^{2} + n

= \frac{n ^{2} + n}{n !}

Apply the fraction rule:

\frac{a \pm b}{c} = \frac{a}{c} \pm \frac{b}{c}

\frac{n ^{2} + n}{n !} = \frac{n ^{2}}{n !} + \frac{n}{n !}

= \frac{n ^{2}}{n !} + \frac{n}{n !}

f^{'} (2) (x^{2} + 1)^{2}

\frac{x + 8}{( x - 2 ) ( x + 3 )}

(\frac{1 + cos ( 2 x )}{2})^{3}

\frac{( f ( x + h ) - x ^{2} )}{h}

\frac{K ( s + 1 )}{s ( s - 1 ) ( s ^{2} + 10 s + 40 )}

What is expand (n(n+1))/(n!) ?
The solution to expand (n(n+1))/(n!) is (n^2)/(n!)+n/(n!)