The first and the last terms of an A.P. are `a a n d l`respectively. S – InterviewSolution

InterviewSolution

1.	The first and the last terms of an A.P. are `a a n d l`respectively. Show that the sum of nth term from the beginning and nthterm from the end is `a+ldot`
Answer» Required sum` = {a + (n-1)d} + {l -(n-1)d} = (a+l)`

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