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## Homework Statement

if the series ∑(n=1, goes to infinity) (-1)^n/(n^3)

is approximated by its ninth partial sum, find a bound for truncation error

## Homework Equations

Alternating Series Estimation Thm:

If alternating series is CONVERGENT, then truncation error for nth partial sum is less than U(sub(n+1)) and has the same sum as the first unused term:

|error|< U(sub(n+1))

## The Attempt at a Solution

|error|< U(sub10)

U(sub10) = 1/10^3

|error|< 1/1000

is this right..?

## Homework Statement

## Homework Equations

## The Attempt at a Solution

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