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Mathematics
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Borealis
  • Member for 2 years, 7 months
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17
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question
4
Understanding proof that $\mathbb{R}$ is Cauchy complete
Jan 29, 2023
question
2
Evaluate $\lim_{(x,y)\to (0,0)}{\frac{x^3 y}{x^2 - y}}$.
Oct 6, 2022
question
2
Understanding proof that multiplicative inverses exist in $\mathbb{R}$
Jan 28, 2023
question
2
Can $S = \{D_x, xD_x, x^2 D_x, x^3 D_x\}$ be extended to a set generating a Lie algebra?
Sep 5
question
1
Prove that the limit $\lim_{n\to\infty}{n^3}$ does not exist, using the $\varepsilon-N$ definition of a limit.
Mar 11, 2022
question
1
Convergence of $\int_{-\infty}^{\infty}{|x|\sin{x}\,dx}$
May 3, 2022
question
1
Passing a test with multiple attempts (conditional probability)
Feb 23, 2023
question
1
Show that $\mathfrak{so}(p,q,\mathbb{R}) = I_{p,q} \mathfrak{so}(n,\mathbb{R})$.
Aug 10
answer
1
Spivak Calculus: $f$ satisfies $f''(x)+f'(x)g(x)-f(x)=0$, for some g. Prove that if 𝑓 is 0 at two points, then 𝑓 is 0 on the interval between them.
May 15, 2022
answer
1
Power Inside Trigonometry Derivative with Chain Rule
Jan 29, 2023
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18
Did early imperial China have a "uniform, multilevel administrative bureaucracy" that the Romans did not?
6
Changing every operator in a document