User Alec

11 votes

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How to find the derivative of a fraction?

answered Jun 27, 2014 at 14:30

8 votes

How to denote an even number in mathematics?

answered Jul 29, 2015 at 16:32

7 votes

What is the last digit of $7^{2015}$?

answered Feb 6, 2016 at 19:02

5 votes

Question about triple exponent

answered Dec 30, 2016 at 18:18

4 votes

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Continuity implies the intermediate value property

answered Aug 1, 2017 at 1:40

4 votes

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"$1/x$ is not a continuous function since its domain is not an interval"

answered Oct 10, 2021 at 13:14

4 votes

Do any terms in mathematics exist to describe these concepts?

answered Jan 17, 2022 at 9:59

3 votes

How to prove: 6 | x(x+1)(x+2)

answered Nov 29, 2018 at 8:15

3 votes

Should I throw the dice again if I have rolled 4?

answered Aug 21, 2014 at 20:13

2 votes

Given a formula with variables, how can I turn it around to find another solution

answered Apr 14, 2014 at 9:11

2 votes

Evaluate the limit $\lim\limits_{ x \to 0} \frac {\sin 5 x } {\sin 2 x }$

answered May 4, 2015 at 6:43

2 votes

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Showing that two tensors are coaxial

answered May 20, 2015 at 17:27

2 votes

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Explanation for derivative of $x*e^x$

answered Feb 5, 2015 at 20:37

2 votes

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How to find the derivative of $(e^{-t} +e^t)^3$

answered Feb 13, 2015 at 23:41

2 votes

How to solve $\frac{x+2}{3-x} \le 0$

answered Aug 13, 2016 at 2:04

2 votes

Is $+15/3$ a natural number?

answered Aug 24, 2016 at 8:11

2 votes

Faster way to get a rational integral $\int_2^3 \frac{x^{100}+1}{x^3+1} \, dx$

answered Aug 26, 2016 at 10:09

2 votes

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Is $f(x) = 2x - 1$ a function from $\{0, 1\}$ to $\{-1, 1\}$?

answered Apr 19, 2016 at 3:35

2 votes

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Secret Santa - Probability of no one getting themselves

answered Dec 4, 2019 at 19:43

2 votes

If two naturals $m, n$ are not divisible by $5$, then $m^4 - n^4$ is.

answered Aug 25, 2017 at 15:09

2 votes

the normal to the plane $x = z$

answered May 3, 2018 at 11:46

1 vote

Indeterminate forms limits

answered Oct 11, 2017 at 16:23

1 vote

Prove limit of $n^2/n!$

answered Oct 25, 2017 at 15:49

1 vote

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Limit $\lim_{x \to \infty} \ln x - x$

answered Jan 10, 2017 at 12:35

1 vote

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Reducing products in modular arithmetic

answered Jan 15, 2018 at 11:20

1 vote

Explanation of sums

answered May 8, 2016 at 19:12

1 vote

Probability of basketball shots in a row

answered Jun 6, 2016 at 11:04

1 vote

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In the context of Laplace transforms, what does the subscript in $h(t) = f(t)\cdot u_3(t)$ signify?

answered Apr 2, 2016 at 18:37

1 vote

Probability that the sum of the results of two fair dice is $6$, given that one of them shows $4$

answered Sep 14, 2016 at 9:22

1 vote

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Meaning of $^*$ after a set?

answered Aug 10, 2016 at 9:35

Stack Exchange Network

48 Answers

How to find the derivative of a fraction?

How to denote an even number in mathematics?

What is the last digit of $7^{2015}$?

Question about triple exponent

Continuity implies the intermediate value property

"$1/x$ is not a continuous function since its domain is not an interval"

Do any terms in mathematics exist to describe these concepts?

How to prove: 6 | x(x+1)(x+2)

Should I throw the dice again if I have rolled 4?

Given a formula with variables, how can I turn it around to find another solution

Evaluate the limit $\lim\limits_{ x \to 0} \frac {\sin 5 x } {\sin 2 x }$

Showing that two tensors are coaxial

Explanation for derivative of $x*e^x$

How to find the derivative of $(e^{-t} +e^t)^3$

How to solve $\frac{x+2}{3-x} \le 0$

Is $+15/3$ a natural number?

Faster way to get a rational integral $\int_2^3 \frac{x^{100}+1}{x^3+1} \, dx$

Is $f(x) = 2x - 1$ a function from $\{0, 1\}$ to $\{-1, 1\}$?

Secret Santa - Probability of no one getting themselves

If two naturals $m, n$ are not divisible by $5$, then $m^4 - n^4$ is.

the normal to the plane $x = z$

Indeterminate forms limits

Prove limit of $n^2/n!$

Limit $\lim_{x \to \infty} \ln x - x$

Reducing products in modular arithmetic

Explanation of sums

Probability of basketball shots in a row

In the context of Laplace transforms, what does the subscript in $h(t) = f(t)\cdot u_3(t)$ signify?

Probability that the sum of the results of two fair dice is $6$, given that one of them shows $4$

Meaning of $^*$ after a set?