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Frank Science
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1
$f:U\rightarrow \mathbb{R}$ continuous, injective- prove $f(U)$ is open.
1
Does there exist $m,a\in \mathbb{N}$ such that $m(m+1)=a^7$?
1
Compute close formula for a sum.
1
How to find $A_1A_2 + \cdots + A_{2010} A_{2011}$, where $A_{n+1} = \frac{1}{1+\frac{1}{A_n}}$
1
Integral of $\int \frac{5x+1}{(2x+1)(x-1)}$
0
Is there a discrete version of de l'Hôpital's rule?
0
Asymptotic behaviour of a sequence
0
Geometry problem
0
Finding matrix $B$ is not zero matrix where $AB= 0$
0
Characterization of real functions which have limit at each point
0
A lemma about extension of function
0
Proving that $A=\{(-2)^n : n \in \mathbb{N} \}$ is unbounded
0
prove the limit in a formal way
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