The sum of first n terms of a sequence is of the form an^2 + bn where a and b are constants independent of n. Show that the sequence is an AP.
Asked by Simran K
| 23rd Feb, 2014,
01:22: PM
Expert Answer:
Consider the given equation of sum of n terms:


Answered by
| 25th Feb, 2014,
09:11: AM
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