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Unformatted text preview: n =1 1 n 5 2. Estimating the sum of a series Theorem 2.1. Suppose f ( k ) = a k , where f is a continuous, positive, decreasing function for x n and a n is convergent. If R n = s-s n , then n +1 f ( x ) dx R n n f ( x ) dx and s n + n +1 f ( x ) dx s s n + n f ( x ) dx Example 2.1. (problem 32) (a) Find the partial sum s 10 of the series n =1 1 /n 4 . Es-timate the error in using s 10 as an approximation to the sum of the series. (b) Use the above inequalities with n = 10 to give an improved estimate of the sum. (c) Find a value of n so that s n is within 0.00001 of the sum....
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This note was uploaded on 03/14/2011 for the course MAC 2312 taught by Professor Zhang during the Fall '07 term at FSU.
- Fall '07