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GDGDJKJ
  • Member for 5 years, 1 month
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5 votes
3 answers
269 views

Are there infinitely many metalogics?

4 votes
2 answers
100 views

$\lim_{\epsilon\to0}\frac{\cos(\epsilon-n\frac{\pi}{2})}{\epsilon^n}$

3 votes
2 answers
82 views

Division by 0 in a rate of change problem

3 votes
3 answers
1k views

Number of pairs of subsets that have no elements in common

2 votes
2 answers
277 views

Find time to collision in a pursuit

2 votes
2 answers
174 views

Inequality from a projectile motion problem

2 votes
2 answers
288 views

Solving linear equations involving many variables

2 votes
1 answer
40 views

Proving a set is a linear subspace of a vector space

2 votes
1 answer
107 views

Isn't the concept of basis kind of circular?

2 votes
5 answers
480 views

Geometry of 3 points getting closer to each other

2 votes
3 answers
86 views

$f'(x)>g'(x)\,\forall x\in [a,\infty)\text{ and }f,\,g\underset{\infty}{\to}0\Rightarrow \lim_{x\to\infty}f(x)/g(x)=0$?

1 vote
3 answers
97 views

$\sum_{k=0}^\infty \frac{1}{(4k+1)(4k+3)}$

1 vote
0 answers
28 views

Remainder Estimate for the Integral Test

1 vote
0 answers
60 views

Possible non geometric intuition for the mean value theorem? [duplicate]

1 vote
1 answer
82 views

Injective function $f:\mathbb{Q}\to\mathbb{Q}$

1 vote
1 answer
37 views

Possible limits of a positive sequence $(u_n)_{n\geq0}$

1 vote
1 answer
77 views

Prove that for even $n$ and $x<-1$, $\sum_{k=0}^n\frac{x^k}{k!}>0$

1 vote
0 answers
29 views

Number of possible passwords given some condition

1 vote
0 answers
61 views

Courant and Fritz, Constructing the real numbers

1 vote
2 answers
42 views

Inequality from continuity exercise

1 vote
0 answers
43 views

Constructing the vector product having in mind that its norm should be an area

1 vote
2 answers
227 views

In how many ways can a woman wear $5$ distinct rings on the fingers of her right hand if no more than three rings may be placed on any finger?

1 vote
1 answer
54 views

$\varphi(d)$ elements of order $d$ in $\mathbb{U}_n$ (defined in the question)

1 vote
1 answer
80 views

Solving for $x$ in a messy square root equation

1 vote
2 answers
64 views

Computing an ellipse's area by substitution

0 votes
1 answer
77 views

Solve for $\mu$ in $\epsilon^\frac32=\mu^\frac32+\frac{(\pi k_B T)^2}{8}\frac1{\sqrt\mu}$

0 votes
1 answer
36 views

Indeterminate forms in numerical analysis

0 votes
1 answer
43 views

Simple counting exercise

0 votes
2 answers
39 views

A mean related to a continuous random variable

0 votes
1 answer
336 views

Help with exponential distribution