a.p.series question

Asked by  | 27th Oct, 2013, 11:15: PM

Expert Answer:

(2n+1) terms suggests that the A.P. has odd number of terms. 
Put different values of n and try.
If n = 1 then 2n + 1 = 3 (odd)
If n = 2 then 2n + 1 = 5 (odd)
 

Answered by  | 28th Oct, 2013, 08:51: AM

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