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prove that Sn=n(n+1) for the sequence an=2n,where n is any positive integers
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prove that Sn=n(n+1) for the sequence an=2n,where n is any positive integers
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Mathematics
3 years
2021-08-23T13:05:22+00:00
2021-08-23T13:05:22+00:00 1 Answers
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Answers ( )
Answer:
Proved
Step-by-step explanation:
Given
Required
Prove that
The given sequence is an arithmetic sequence.
The Sn of this sequence is:
Calculate a1
So, we have:
Factor out 2
— Proved