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1. Show the series convergent or not. (-1) (In 2) n=0 2. Use the root test for the series convergent or not. ~ n2 E (1-5) n

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(6) (102) n=d an (1) (102)n Apply root test lim [(an) |(E))* 2 linzlina 1.44 ;... (Can)n | 1 so the series diverge 2. 2 (-)3 & w 73 ca+1) 3n apply test lim up (nt) (+1) sw n in 3 dim 3 (x+1) 3 for convergence 1x+1) 2 1 3 » Ixtil 3 convergence radin

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