Question

The nth term of a progression is (n^2+1).Show that it is not an A.P​

Answer 1

The nth term of an AP can't ben2+1. Difference between first and second term = 5 - 2 = 3. In A.P,common difference should notbe equal, so this series can't be A.P.Thus, the nth term of an A.P. can't be n2 + 1.

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Answer 2

Answer:

The nth term of an AP can't be n2+1. Difference between first and second term = 5 - 2 = 3. In A.P,common difference should not be equal, so this series can't be A.P. Thus, the nth term of an A.P. can't be n2 + 1.

Step-by-step explanation:

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