JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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The sum of first three terms of an increasing A.P. is 9 and sum of their squares is 35. The sum to

n

terms of the series is

View answer and explanation

Correct option: D

n^2

Option D (

n^2

) is correct because, given the sum of the first three terms and their squares, the sum to n terms of the A.P. is

n^2

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