in any series the term of n is 3-2 n. so find sum of n term Question in any series the term of n is 3-2 n. so find sum of n term in progress 0 Math Sarah 3 weeks 2021-08-23T06:08:37+00:00 2021-08-23T06:08:37+00:00 1 Answer 0 views 0

## Answers ( )

Answer:First term (a) = 3 – 2×(1) = 1

a2 = 3 – 2×(2) = -1

a3 = 3 – 2×(3) = -3

As the difference between a3,a2 and a2,a1 is same so the series is in AP

common difference (d)= -1 – 1 = -2

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