Question: Prove Theorem 9.18 Data from in Theorem 9.18 THEOREM 9.18 Root Test 1. The series a, converges absolutely when lima 2. The series a, diverges
Prove Theorem 9.18
Data from in Theorem 9.18

THEOREM 9.18 Root Test 1. The series a, converges absolutely when lima 2. The series a, diverges when lim /a n 3. The Root Test is inconclusive when lim n0 n > 1 or lim /|a| = o. n |a|= 1.
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First let lim a r 1 n0 and choose R such that 0 r R 1 There must exist some N 0 such that R for a... View full answer
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