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State if true or false. If false, provide an explanation or counterexample. a) The series ∑n=1oo...

State if true or false. If false, provide an explanation or counterexample.

a) The series ∑n=1oo (−1)? [(?4 2?)/3n] converges absolutely.

b) The radius of convergence of the power series ∑ (0.25)? √(?)?? is 4.

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