Find the indicated sum.
-$$\sum _ { i = 1 } ^ { 5 } \frac { ( \mathrm { i } - 1 ) ! } { ( \mathrm { i } + 1 ) ! }$$
A) $\frac { 9 } { 5 }$
B) $\frac { 5 } { 6 }$
C) $\frac { 21 } { 10 }$
D) $\frac { 73 } { 30 }$

Question

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The Answer of Find the indicated sum.
-$$\sum _ { i = 1 } ^ { 5 } \frac { ( \mathrm { i } - 1 ) ! } { ( \mathrm { i } + 1 ) ! }$$
A) $\frac { 9 } { 5 }$
B) $\frac { 5 } { 6 }$
C) $\frac { 21 } { 10 }$
D) $\frac { 73 } { 30 }$

Find the Indicated Sum ∑i=15(i−1)!(i+1)!\sum _ { i = 1 } ^ { 5 } \frac { ( \mathrm { i } - 1 ) ! } { ( \mathrm { i } + 1 ) ! }i=1∑5​(i+1)!(i−1)!​

Find the Indicated Sum $\sum _ { i = 1 } ^ { 5 } \frac { ( \mathrm { i } - 1 ) ! } { ( \mathrm { i } + 1 ) ! }$