Math, asked by kpranaykumar78, 17 days ago

the sum of first 11 terms of an AP is 121 and the sum of first 21 terms of same AP is 441 find the sum of first n terms of the same AP

Answers

Answered by shallkumari29march19

1

Answer:

n²

Step-by-step explanation:

We can see that sum of first 11 terms is (11)² = 121.

sum of first 21 terms is (21)² = 441.

so, sum of first n terms will be n².

Please mark my answer as the BRAINLIEST answer.

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