Please give an example of a sequence (an) that has: (a) an(k) = (1/k) as a subsequence where n(k)= 3k. (b) an(k) = ((-)^(k)k^(2) as a subsequence where n(k)= 2k -1 %3D

Advanced Engineering Mathematics
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Chapter2: Second-order Linear Odes
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Please give an example of a sequence
(an) that has: (a) an(k) = (1/k) as a subsequence where n(k)= 3k.
(b) an(k) = ((-)^(k)k^(2) as a subsequence where n(k)= 2k -1
Transcribed Image Text:Please give an example of a sequence (an) that has: (a) an(k) = (1/k) as a subsequence where n(k)= 3k. (b) an(k) = ((-)^(k)k^(2) as a subsequence where n(k)= 2k -1
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