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Write an Expression for the Nth Term of the Sequence 9,94,99,916, L9 , - \frac { 9 } { 4 } , \frac { 9 } { 9 } , - \frac { 9 } { 16 } , \mathrm {~L}

Question 45

Multiple Choice

Write an expression for the nth term of the sequence. 9,94,99,916, L9 , - \frac { 9 } { 4 } , \frac { 9 } { 9 } , - \frac { 9 } { 16 } , \mathrm {~L}


A) 91n+1n2\frac { 9 - 1 ^ { n + 1 } } { n ^ { 2 } }
B) 9(1) nn2\frac { 9 ( - 1 ) ^ { n } } { n ^ { 2 } }
C) 9(1) n1n2\frac { 9 ( - 1 ) ^ { n - 1 } } { n ^ { 2 } }
D) 1n19n2\frac { - 1 ^ { n - 1 } } { 9 n ^ { 2 } }
E) (1) n9n2\frac { ( - 1 ) ^ { n } } { 9 n ^ { 2 } }

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