Question:
Let Sn be the sum of the first n terms of the series a1+a2+...an+… If Sn=n2+4n, then the nth term an is
Let Sn be the sum of the first n terms of the series a1+a2+...an+… If Sn=n2+4n, then the nth term an is
Updated On: May 31, 2024
- 2n+3
- 2n-1
- 2n+5
- 2n-3
- 2n
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The Correct Option is A
Solution and Explanation
The correct option is (A) : 2n+3
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