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

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2418. + +<br />

0419 J___1_<br />

.<br />

4- 4- 4- ' ' -I- 4-<br />

'<br />

2i<br />

2 ^ 4 ^ 6 ^ '<br />

Number Series 299<br />

^ ' ' '<br />

2421. + ++ ... + +<br />

2422. -= + -=-f -= + ... 4- '<br />

1/2-3 ^3-4<br />

2423.<br />

02 OJ O"<br />

2 + i- + y+... +=;-+..<br />

.<br />

.<br />

]fn (n + \)<br />

-' 3 V'2 4 J/3 (n 1-1) K "<br />

Us<strong>in</strong>g d'Alembert's lest, test the follow<strong>in</strong>g bones for convergence:<br />

2427. -l= + 4 4-^- +...-' 2"~' '<br />

98<br />

-*' !<br />

2<br />

-<br />

i<br />

1 + ^ ''-} '<br />

j<br />

'<br />

-<br />

1 1-5 1-5-9<br />

1-5- 9. ..(4/i-3)<br />

Test for convergence, us<strong>in</strong>g Cauchy's test:<br />

Test for convergence the positive series:<br />

2431. 1+1 + 1+...+1+...<br />

2432. 1 + 1 + 1+ .<br />

2433 -<br />

1<br />

..+ [ ((H )2_ +...<br />

1<br />

r4+4T7 + 7no+ +(3n-2M3n+l<br />

24.i+f) -^+... +sS FI+ ...<br />

2435. ^ + 1- + ^+...+^+...<br />

.'^ 5 7 9 j_ i<br />

r/lo/ ^ ^ * *<br />

i i i i l<br />

I I ^TtjO J_ _X. __________

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