Mathematics
Peter Szilas's user avatar
Peter Szilas's user avatar
Peter Szilas's user avatar
Peter Szilas
  • Member for 6 years, 8 months
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View all questions and answers
All Questions Answers
Score Newest
answer
21
Convergence or not of infinite series: $\sum^{\infty}_{n=1}\frac{n}{1+n^2}$
Jun 8, 2018
answer
18
General formula for nth element of the sequence 0, 1, 0, 1, ...
Sep 25, 2018
answer
14
Can the product of three complex numbers ever be real?
Mar 3, 2018
answer
12
How can I prove this statement about subsets?
Sep 26, 2018
answer
11
Proof that the number of proofs is countably infinite
Jun 11, 2018
answer
10
Find the value of $x$, for which the function $h(x) = \frac 1{(x-5)^2+4(x-5)+4}$ is undefined
Sep 3, 2017
answer
7
solve $\lim_{x\rightarrow -5} \frac{2x^2-50}{2x^2+3x-35}$
Nov 22, 2018
answer
7
Prove polynomial identity $x^k-1=(x-1)(x^{k-1}+x^{k-2}+\ldots+1).$
Feb 19, 2018
answer
7
If an integer $m$ is odd how can it be proven that its square would be odd?
Nov 4, 2017
answer
6
How can I prove that $\frac{e^x+e^y}{2}>e^\frac{x+y}{2}$, where $x \neq y$?
Dec 24, 2018

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