Question

sum of infinite term of Arthamtic progression and geometric progression​

Answer 1

Answer:

Arthemetic mean is equals to sum of observation by number of observations

Answer 2

Answer:

Arithmetic progression

let the no of terms be n

then sum of terms will be n/2(a+l)

where a is the first term and l is the last term The sum of an infinite arithmetic sequence is either ∞, if d > 0, or - ∞, if d < 0.

Geometric Progression

The sum of infinite terms of a GP series S∞= a/(1-r) where 0< r<1. If a is the first term, r is the common ratio of a finite G.P. consisting of m terms, then the nth term from the end will be = arm-n.