# D Zhang

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bio website location age member for 1 year, 6 months seen Sep 14 at 15:17 profile views 5

# 3 Questions

 2 How to prove that $\lim_{n\to\infty}\frac{a^n}{n!}=0$? [duplicate] 1 To prove that $\limsup_{n\to\infty}\frac{1}{a_n} = \frac 1{\liminf_{n\to\infty}a_n}$ 1 show that the remainder for midpoint rule is $\frac{(b-a)^3}{24}f''(\xi)$ for some $\xi\in[a,b]$ using hermite interpolation

# 21 Reputation

 +5 To prove that $\limsup_{n\to\infty}\frac{1}{a_n} = \frac 1{\liminf_{n\to\infty}a_n}$ +5 show that the remainder for midpoint rule is $\frac{(b-a)^3}{24}f''(\xi)$ for some $\xi\in[a,b]$ using hermite interpolation +10 How to prove that $\lim_{n\to\infty}\frac{a^n}{n!}=0$?

 0 To prove that $\limsup_{n\to\infty}\frac{1}{a_n} = \frac 1{\liminf_{n\to\infty}a_n}$

# 5 Tags

 0 real-analysis × 3 0 numerical-methods 0 sequences-and-series × 2 0 calculus 0 limsup-and-liminf × 2

# 9 Accounts

 Mathematics 21 rep 4 Cross Validated 6 rep 1 Stack Overflow 1 rep Meta Stack Exchange 1 rep TeX - LaTeX 1 rep