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Consider a sequence whose sum to n terms...

Consider a sequence whose sum to n terms is given by the quadratic function `Sn= 3n^2 +5n`. Then sum of the squares of the first 3 terms of the given series is

A

1100

B

660

C

799

D

1000

Text Solution

Verified by Experts

The correct Answer is:
B
`T_(1)^(2),T_(2)^(2),T_(3)^(2)=8^(2)+14^(2)+20^(2)=64+196+400=660`
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