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

question 115

Multiple Choice

Find a formula for the general term $a _ { n }$ of the sequence $\left\{ 2,1 , \frac { 8 } { 9 } , 1 , \frac { 32 } { 25 } , \frac { 64 } { 36 } , \frac { 128 } { 49 } , \ldots \right\}$ .

• A) \(\frac { 2 ^ { n + 1 } } { n ^ { 2 } }\)
• B) \(\frac { 2 ^ { n } } { ( n + 1 ) ^ { 2 } }\)
• C) \(\frac { 2 ^ { n } } { n ^ { 2 } }\)
• D) \(\frac { 2 ^ { n } } { ( n - 1 ) ^ { 2 } }\)
• E) \(\frac { 2 ^ { n - 1 } } { n ^ { 2 } }\)
• F) \(\frac { 2 n } { n ^ { 2 } }\)
• G) \(\frac { 2 ^ { n - 1 } } { n ^ { 2 } }\)
• H)None of these

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