29.01.2013 Views

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

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

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

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

^Sec 3] Limits<br />

Therefore,<br />

Example<br />

9. F<strong>in</strong>d<br />

Solution. We have<br />

lim /<br />

lim f x ~~<br />

j<br />

\<br />

=0.<br />

lim ^11= lim i =<br />

X-+ 06 X -4- 1 (- CO . , 1<br />

+ T<br />

Transform<strong>in</strong>g, as <strong>in</strong>dicated above, we have<br />

In this case it is easier to f<strong>in</strong>d the limit without resort<strong>in</strong>g to the general<br />

procedure:<br />

Generally,<br />

it is useful to remember that<br />

lim<br />

250. li<br />

"" 2*"M<br />

244. lim(*<br />

251.<br />

].<br />

lirn(l + s<strong>in</strong>jc) *.<br />

X-K>\ X 3x4-2/ -.o<br />

2 \* a<br />

i<br />

/^i<br />

J_<br />

245><br />

*<br />

Jill ( 2?+T ) 252**. a) lim (cos x)<br />

/ 1 \<br />

246. Hmfl -)<br />

... V /<br />

247 Iim(l f I)*.<br />

t<br />

X~*<br />

. .<br />

b) H<br />

;

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!