Question

Is l term and An same in ap ?

Answer 1

Answer:

no because a1 defines 1st term of an a.p.

and,an defines the nth term of an a.p. like,1,2,3,4,5,6,7,8,9, etc.....

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Answer 2

If S be the sum of all the terms of the A.P.,The common difference is 2S−(l+a)l2−a2.

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