Find the Indicated Sum $$\sum _ { i = 3 } ^ { 6 } \frac { i ! } { ( i - 1 ) ! }$$

question 82

Multiple Choice

Find the indicated sum.
- $$\sum _ { i = 3 } ^ { 6 } \frac { i ! } { ( i - 1 ) ! }$$

• A) 3
• B) 18
• C) 10
• D) 6

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