JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Hard

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Application +4 | -1

If the sum of

n

terms of an A.P. is

c n^2

, then the sum of their squares is

View answer and explanation

Correct option: C

\frac{n c^2\left(4 n^2-1\right)}{3}

Option C (

\frac{{n c^2(4 n^2-1)}}{{3}}

) is correct because it is the sum of the squares of the terms of the A.P.

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