# Recursion Formula and Series

Write recursion formula for series an = 1/2n

Â© BrainMass Inc. brainmass.com February 24, 2021, 2:25 pm ad1c9bdddfhttps://brainmass.com/math/basic-algebra/recursion-formula-series-19335

#### Solution Preview

an = {1/2, 1/4, 1/6, ...} for all n>0

then An=1/(2n)

An+1 =1/(2(n+1)) ...

#### Solution Summary

This shows how to write a recursion formula for a series.

$2.19