# voldemort

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 12 Is $f(x)=10$ a periodic function? 10 How to show $\displaystyle\lim_{n\to\infty}\sqrt[n]{|z^n|}=|z|$ 10 Prove that $\sqrt{2 + 9n}$ is never an integer 9 There are finitely many maps on nonnegative integers satisfying $\phi(ab)=\phi(a)+\phi(b)$ 8 $e^x$ defined $a^x$

# 8,494 Reputation

 +40 a limit property at infinity +15 $V=V_1 \oplus V_2 = V_1 \oplus V_3$ does not mean $V_2 = V_3$ +10 Find $\lim _{x\to \infty \:}\left(\frac{2^x-3^x}{3^x+4^x}\right)$ +10 $x^2-y^2=2s$, s cannot be an odd integer

# 2 Questions

 3 Entropy of convolution of measures 2 Is $vN(M_1,M_2) \cap M_3= vN(M_1,M3) \cap vN(M_2,M3)$?

# 158 Tags

 130 linear-algebra × 91 45 algebra-precalculus × 18 70 real-analysis × 51 44 sequences-and-series × 25 68 calculus × 41 36 matrices × 27 66 abstract-algebra × 32 30 probability × 23 50 limits × 24 30 analysis × 16

# 3 Accounts

 Mathematics 8,494 rep 828 Science Fiction & Fantasy 253 rep 17 MathOverflow 151 rep 117