Find the indicated term of the sequence. $a _ { n } = ( - 1 ) ^ { n } ( 4 n - 2 )$ $a _ { 27 } =$
A)102
B)-106
C)-110
D)6
E)-104

Name: Find the indicated term of the sequence. $a _ { n } = ( - 1 ) ^ { n } ( 4 n - 2 )$ $a _ { 27 } =$ A)102 B)-106 C)-110 D)6 E)-104
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Question

Find the indicated term of the sequence. $a _ { n } = ( - 1 ) ^ { n } ( 4 n - 2 )$ $a _ { 27 } =$  
A)102
B)-106
C)-110
D)6
E)-104

Quizplus · Accepted Answer

The sequence is defined as $a_n = (-1)^n (4n - 2)$. For $n = 27$, $a_{27} = (-1)^{27} (4 \times 27 - 2) = -1 \times 106 = -106$.

Find the Indicated Term of the Sequence an=(−1)n(4n−2)a _ { n } = ( - 1 ) ^ { n } ( 4 n - 2 )an​=(−1)n(4n−2)

Find the Indicated Term of the Sequence $a _ { n } = ( - 1 ) ^ { n } ( 4 n - 2 )$