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Mathematics
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math_learner
  • Member for 1 year, 3 months
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7
The sequence $a_{n+2}=\frac{a_{n+1}+a_n}{\gcd\left(a_{n+1,}a_n\right)}$ is bounded
Feb 11
6
trouble understanding a solution to symmetric equations between three functions
Apr 22, 2023
5
Find the greatest value of $E=\frac{a_1}{1+a_1^2}+\frac{a_2}{1+a_2^2}+\ldots+\frac{a_n}{1+a_n^2}$
Apr 14, 2023
3
Does $f(f(x))=x$ imply surjectivity? [duplicate]
Apr 14, 2023
3
Coefficient of $x^{21}$ in $(1+x+x^2+\dots+x^{10})^4$
Apr 13
3
Doubt regarding limits on riemann sums
Apr 27
2
Determine all the functions $f:\mathbb R\mapsto\mathbb R$ satisfies the equation $f(a^2 +ab+ f(b^2))=af(b)+b^2+ f(a^2)\,\forall a,b\in\mathbb R $
Apr 15, 2023
2
Prove that for some $k$, there are polynomials $f_1(x),f_2(x),\ldots,f_k(x)$ such that $p(x)=\sum_{j=1}^k(f_j(x))^2$
Apr 27, 2023
2
Inequality with $a_1,a_2, \cdots , a_n$
May 1, 2023
2
Divisors of numbers written on cards
Jan 29