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Nth-Term Test for Divergence
Grade Level
Calculus I
CAL1.159 Nth-Term Test for Divergence
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Consider the series Σ from n = 1 to ∞ of aₙ, where aₙ = (n²) sin(n) ÷ n². Does the nth-term test prove the series diverges?
A
No; because limₙ→∞ aₙ does not exist, so the test cannot be used.
B
Yes; because limₙ→∞ aₙ does not exist, so the terms do not approach 0.
C
No; because limₙ→∞ aₙ = ∞ means the terms approach 0.
D
Yes; because limₙ→∞ aₙ = 0 guarantees divergence.
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