brayhampton1662 brayhampton1662
  • 26-04-2024
  • Mathematics
contestada

If the sum of first n terms of an AP is cn², then the sum of squares of these n terms is
A.n(4n²−1)c²/6
B.n(4n²+1)c²/3
C.n(4n²−1)c²/3
D.n(4n²+1)c²/6

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