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

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40 Introduction to <strong>Analysis</strong> [Ch. 1<br />

316. The function f(x) is not def<strong>in</strong>ed for x so<br />

= 0.<br />

that fix)<br />

Def<strong>in</strong>e /(O)<br />

is cont<strong>in</strong>uous for x = 0, if:<br />

I<br />

/] y\__1<br />

a) f(x) = l ^ ;- y (n is a positive <strong>in</strong>teger);<br />

b) /(*) =<br />

x<br />

1 cos* .<br />

A*<br />

c) /(*) = ln(\+x) 111(1<br />

d) /(<br />

f) /(*) = * cot*.<br />

Investigate the follow<strong>in</strong>g functions for cont<strong>in</strong>uity:<br />

317. y = -. 324.

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