Find a Formula for the General Term $a _ { n }$

question 129

Multiple Choice

Find a formula for the general term $a _ { n }$ of the sequence $\left\{ 1 , - \frac { 12 } { 10 } , \frac { 19 } { 15 } , - \frac { 26 } { 20 } , \frac { 33 } { 25 } , \ldots \right\}$ .

• A) \(\frac { ( - 1 ) ^ { n - 1 } ( 5 + 7 n ) } { 5 ( n + 1 ) }\)
• B) \(\frac { ( - 1 ) ^ { n } ( 5 + 7 n ) } { 5 n }\)
• C) \(\frac { ( 5 + 7 n ) } { 5 ( n + 1 ) }\)
• D) \(\frac { ( - 1 ) ^ { n } ( 5 - 7 n ) } { 5 ( n + 1 ) }\)
• E) \(\frac { ( - 1 ) ^ { n } ( 5 + 7 n ) } { ( n + 1 ) }\)
• F) \(\frac { ( - 1 ) ^ { n + 1 } ( 5 - 7 n ) } { 5 ( n + 1 ) }\)
• G) \(\frac { ( - 1 ) ^ { n } ( 5 + 7 n ) } { 5 ( n + 1 ) }\)
• H)None of these

---

Definitions:

Adjusting Entries

Journal entries made at the end of an accounting period to allocate income and expenses to the period in which they actually occurred.

Close Account Year-End

The process of updating account balances and summarizing a company's financial activities to prepare for the next accounting period.

Interest Revenue

Income earned from lending funds or through investing in interest-bearing financial instruments.

Gain Sale Building

The profit realized from the sale of a building asset.