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1. Determine the convergence/divergence of the following series. (a) Σ, 1 tan(1/n2); (b) Σ la cos(1/n); (c) Σ i cos(1/n3); n-1 In(1 n= n3); (f) Σ00i 2-cos+1/n). 0o (h) Σ oo 1+cos(n) ;
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