12. For the following telescoping series find a formula for the nth term of the sequence of partial sums {S}. Then evaluate lim S₁ to obtain the value of the series or show that it diverges. n2-00 For each sequence write out the first few terms and the last few terms. 6 a) En=1 (2n-1)(2n+1) (Partial Fraction Decomposition) b) Ex-1(--(+1)²) Σ=1(

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