Question

Find the first four terms as well as the tenth term of the sequence with the given nnth term.

an=(1)n2nna_n=(-1)^n \frac{2^n}{n}

Solution

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Answered 1 year ago
Answered 1 year ago
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Given the n-th term rule

an=(1)n2nna_{n}=(-1)^{n}\cdot\frac{2^{n}}{n}

replace nn with 1,2,3,4,\quad 1,2,3,4, and 1010.

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