11.The sum of n terms of an AP is 5n2 -3n. Find the AP – InterviewSolution

1.

11.The sum of n terms of an AP is 5n2 -3n. Find the AP

Answer»

Putting n=1, 5n²-3n=5-3=2

Putting n=2, 5n²-3n=14

Therefore 2nd term is 14-2=12

Therefore AP is 2, 12, 22 ... and so on.

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