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

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422<br />

Answers<br />

X arctan(* + 2). 1294. In + = arc tan . 1295. x<br />

,<br />

x arc tan<br />

x*-x V 2 + 1<br />

K"-\ ,,.,<br />

1297.<br />

+ arctan(*+l). 1299. In |<br />

- In<br />

1302.<br />

. 1300.<br />

-<br />

l<br />

_|arctanxf-^<br />

TT^-jT<br />

arc tanx. 1304. x<br />

'+4^<br />

1305. 4r (8<br />

+ 21n<br />

1311. 1<br />

*+l<br />

X[2 ^<br />

-3<br />

x 4<br />

2<br />

. 1313.<br />

arc tan x<br />

+ji-i*-<br />

1<br />

2<br />

1298.<br />

5=41. 1303.<br />

5 In (x 2<br />

1306.<br />

1<br />

arc tan<br />

-<br />

tan (x-^1).<br />

. 1310. ln|x| y ln|*7 . +H H<strong>in</strong>t. Put 1 = 7<br />

(* -J- 1)<br />

1 1<br />

i o<br />

x 7 .<br />

1 1<br />

. 1312. arc tan (A: +1)-^- arc tan x<br />

o<br />

1 1 1 ._- _ J_ J 1<br />

9(jc_l)> 4(x l)" s<br />

1315. 2 FT<br />

56 ^/(a* + 6)']<br />

X -6 In (l+/l. 1319.<br />

3^/1-6 ^/"x<br />

3 In |<br />

1320. In -^=. arc tan<br />

^3<br />

'<br />

7<br />

7(jc I)<br />

3 (A:~<br />

1<br />

1317. 2 arc tan<br />

1 + J/l + 6 arc tan */l.<br />

|<br />

-<br />

Sx^Sx* x<br />

. 1316.<br />

1318.<br />

Xarctan]/|-. 1322. 2 arc tan ^1-x. 1323. - (jf_2)+-I In /<br />

=il. 1324. where

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