嘉定一中AP选修课
AP Calculus BC
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Microeconomics
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Assignment 11: Sequences and Series
Assignment 11: Sequences and Series
数列和级数
练习数列与级数相关题目
✍️ 5 题
1. Does the series Σ(1/n²) from n=1 to ∞ converge?
A. Yes, it converges to π²/6
B. No, it diverges
C. It converges to 1
D. It converges to 0
2. The harmonic series Σ(1/n) is:
A. Divergent
B. Convergent to 1
C. Convergent to e
D. Conditionally convergent
3. What is the radius of convergence of Σ(xⁿ/n!)?
A. R = ∞
B. R = 1
C. R = 0
D. R = e
4. The Alternating Series Test says Σ(-1)ⁿ·aₙ converges if:
A. aₙ is decreasing and lim aₙ = 0
B. aₙ > 0 for all n
C. lim aₙ = 0 only
D. aₙ is increasing
5. The Taylor series for eˣ centered at 0 is:
A. Σ(xⁿ/n!) from n=0 to ∞
B. Σ(xⁿ) from n=0 to ∞
C. Σ(n·xⁿ) from n=0 to ∞
D. Σ(xⁿ/(n+1)!) from n=0 to ∞
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