Is it a Subsequence?

Calculus Level 1

Is the sequence { a n } n = 0 ∞ \{a_n\}_{n=0}^{\infty} given by a n = n 2 a_n=n^2 a subsequence of the sequence { b n } n = 0 ∞ \{b_n\}_{n=0}^{\infty} given by b n = n b_n=n ?

Yes No

Samir Khan by Samir Khan , 23, USA

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2 solutions

Samir Khan
Jul 12, 2016

Yes. Every term of the a n a_n is a term of the b n b_n , so it is a subsequence.

3 Helpful 0 Interesting 0 Brilliant 2 Confused
Satish Shukla
Aug 8, 2018

Since the sequence { a n } \{a_n\} is obtained by deleting all the terms of { b n } \{b_n\} which are not square, therefore answer is "Yes".

2 Helpful 0 Interesting 0 Brilliant 1 Confused

I press yes it said incorrect

Yunk kim - 3 months, 3 weeks ago

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