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Problems in Mathematical Analysis.pdf - pwp.net.ipl.pt

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304_Series__[Ch. 8<br />

series<br />

2503. Estimate the error due to replac<strong>in</strong>g the sum of the<br />

1 JL -L-L-L-l. 4- 4i<br />

^2M3M "+/i!^"'<br />

by the sum of its first n terms. In particular,<br />

racy of such an approximation for n=10.<br />

series<br />

estimate the accu-<br />

2504**. Estimate the error due to replac<strong>in</strong>g the sum of the<br />

1 + 22 + 32+ +^i+ '<br />

by the sum of its first n terms. In particular, estimate the accuracy<br />

of such an approximation for n= 1,000.<br />

2505**. Estimate the error due to replac<strong>in</strong>g the sum of the<br />

series<br />

by<br />

1 + .<br />

2(i)'43()V.<br />

the sum of its first n terms.<br />

00<br />

Zl _ I)"" 1<br />

- - does one have<br />

n = i<br />

to take to compute its sum to two decimal places?<br />

decimals?<br />

2507. How many<br />

terms of the series<br />

(2/1 -MIS*<br />

to three<br />

does one<br />

have to take to compute its sum to two decimal to four?<br />

places? to three?<br />

2508*. F<strong>in</strong>d the sum of the series -L + gL + jL + .. . +<br />

2509. F<strong>in</strong>d the sum of the series<br />

Sec. 2. Functional Series<br />

1. Region of convergence. The set of values of the argument x for which<br />

the functional series<br />

converges is called the region of convergence<br />

/.

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