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Mathematics
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13

Theorem

Highschooler trying to find his way around the realm of mathematics.

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  • Member for 2 years, 11 months
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  • Last seen 6 hours ago

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Top posts (74) All Questions Answers | Votes Newest

11 Is my proof of $\lim_{x\to \infty}\frac 1x = 0$ correct? Feb 10 '17
7 Proof Verification About Sequence Limits Dec 17 '16
6 The base in which $1065 = 13 \cdot 54$ is true Jul 21 '18
5 If $f$ has a zero and $|f''|\leq M$, then $f$ is monotone on $(-h,h)$, where $h=\sqrt{2|f(0)|/3M}$ Nov 18 '17
4 Derangements $p$ of $1,2,\dots,n,n+1$ such that $n+1$ doesn't go to $n$ Dec 15 '18
4 How to go from $\frac{a}{sinA}=\frac{b}{sinB}=\frac{c}{sinC}=2R$ to $sinA+sinB+sinC=\frac{a+b+c}{2R}$ Oct 23 '16
3 $\lim_{x\rightarrow 6} \frac{\sqrt{x+3}-3}{x-6}$ without L'Hôpital's rule Oct 16 '16
3 $\int_a^\infty f(x)\sin(e^x)\text{d}x$ conditionally convergent Oct 24 '17
3 Proof Verification- $f$ is positive on $(0,\infty)$ Feb 9 '18
3 Show $g(x)=\frac{x \sin x}{x+1}$ has no maxima in $(0,\infty)$ Jan 9 '17
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