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Dec
4
answered Convergence of $\sum_{n=1}^{\infty}f(n)$ $\iff $ convergence of $\int_1^{\infty}$f(x)dx
Nov
28
answered Give me hints for evaluating this limit
Nov
27
asked Throwing the dice - wrong interpretation still yields correct result
Nov
21
asked Reconstructing a function from its critical points and inflection points
Nov
17
answered proof of limit explanation
Nov
17
asked Show that $\exp(x)-1=\mathcal{O}(x)$ for $x\to 0$
Nov
10
asked Show that $\sqrt{x}$ is continuous using sequences
Nov
3
asked Is there a whole number $x\in\mathbb{Z}$ with $x\neq 0$ s.t. $\exp(x)$ is natural?
Nov
2
asked Prove that $x_{n+1}=\frac{x_n}{2}+\frac{1}{x_n}\geq\sqrt{2}$
Oct
1
asked Prove $\sum_{k=0}^n\binom{2n+1}{2k}=4^n$
Sep
30
answered Find a function $g(x,y)$ that satisfies the following conditions
Sep
23
asked Solving ODE $\dot{x}=\lambda x-b$
Mar
31
asked $\varepsilon$-$\delta$-definition for continuity of $x^n$
Mar
31
asked Sequence with an infinite amount of limit points
Feb
18
answered $E^2[X]$ vs.$E[X^2]$, what's the difference?
Jan
20
asked Properties of shortest walks and simple paths during optimization
Jan
16
answered When is $f(x) = \frac{ax}{e^{-b}-{(e^{c})}^x}$ monotonic?
Jan
14
asked Parameterized curve describing trajectory of thrown object
Jan
7
answered If $\sum_{n=1}^\infty a_n$ is convergent, then $\sum_{n=1}^{\infty} a_n\sin(n)$
Jan
7
asked Differentiation with respect to integral boundary