Use Sigma Notation to Write the Sum $\frac { 1 } { 3 \cdot 2 } + \frac { 1 } { 4 \cdot 3 } + \ldots + \frac { 1 } { 8 \cdot 7 }$

question 27

Multiple Choice

Use sigma notation to write the sum. $\frac { 1 } { 3 \cdot 2 } + \frac { 1 } { 4 \cdot 3 } + \ldots + \frac { 1 } { 8 \cdot 7 }$

• A) \(\sum _ { n = 1 } ^ { 6 } \frac { 1 } { ( n + 1 ) ( n + 2 ) }\)
• B) \(\sum _ { n = 1 } ^ { 6 } \frac { 1 } { n ( n + 1 ) }\)
• C) \(\sum _ { n = 1 } ^ { 6 } \frac { 1 } { ( n + 2 ) ! }\)
• D) \(\sum _ { n = 1 } ^ { 4 } \frac { 1 } { ( n + 1 ) ( n + 2 ) }\)
• E) \(\sum _ { n = 0 } ^ { 5 } \frac { 1 } { ( n + 1 ) ( n + 2 ) }\)

---

Definitions:

Stream of Profits

A continuous flow of earnings generated by a business or investment over a period of time.

Mining

The extraction of valuable minerals or other geological materials from the Earth.