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

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82 Differentiation of Functions (Ch. 2<br />

799. limx*.<br />

4 800. limx * 1<br />

"*.<br />

801. l<strong>in</strong>ue s/n *.<br />

*->0<br />

802. lim(l-*)<br />

a<br />

cos<br />

803. lim(l+x 2<br />

)*-<br />

X-+0<br />

809. Prove that the limits of<br />

a)<br />

s<strong>in</strong>*<br />

X<br />

804. li<br />

V-H<br />

tan<br />

805. Hmftan^f) \<br />

X-+l\<br />

4 /<br />

806. lim (cot x) ln *.<br />

X-H)<br />

ta<br />

807.<br />

lta(I) ".<br />

x-*o \ x /<br />

808. lim (cot x)* <strong>in</strong> *.<br />

cannot be found by the L'Hospital-Bernoulli rule. F<strong>in</strong>d these<br />

limits directly.<br />

810*. Show that the area of a circular segment with m<strong>in</strong>or<br />

central angle a, which has a chord AB=b and CD=A (Fig. 20), is<br />

approximately<br />

with an arbitrarily small relative error when a ->0.<br />

1

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