User Henry - Mathematics Stack Exchange

11 votes

Intuition behind the Definition of Conditional Probability (for 2 Events)

answered Oct 16, 2012 at 8:40

11 votes

Calculating the limit of $[(2n)!/(n!)^2]^{1/n}$ as $n$ tends to $\infty$

answered Feb 16, 2012 at 1:44

11 votes

A question on circles

answered Jun 6, 2011 at 12:13

11 votes

Accepted

Average wait time arriving at subway randomly

answered Jul 19, 2011 at 20:40

11 votes

Equation of a rectangle

answered Oct 1, 2011 at 21:43

11 votes

Approximation of $e^{-x}$

answered Oct 10, 2011 at 6:20

11 votes

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What does it mean to divide by the standard deviation?

answered Jan 23, 2012 at 0:40

11 votes

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Sum of n i.i.d Beta-distributed variables

answered Feb 2, 2019 at 1:21

11 votes

Is my game fair?

answered May 27, 2018 at 19:36

11 votes

How to prove $\sum_p p^{-2} < \frac{1}{2}$?

answered Nov 29, 2015 at 21:43

11 votes

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$\int{x^k dx}$ as $k \rightarrow -1$ "paradox"

answered Jan 19, 2022 at 23:22

10 votes

Why there is two different answers for the volume of a frustum?

answered 14 hours ago

10 votes

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A coin is tossed $m+n$ times $(m>n)$.Show that the probability of atleast $m$ consecutive heads is $\frac{n+2}{2^{m+1}}$

answered Sep 29, 2015 at 11:53

10 votes

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How to solve $f(x)+f\left(\frac{1}{x}\right)=e^{x+\frac{1}{x}}$

answered May 18, 2016 at 8:19

10 votes

How is the distance of two random points in a unit hypercube distributed?

answered Oct 26, 2016 at 8:12

10 votes

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Expected value from a game which gives random numbers from 1 to 100 with reducing payoff

answered Oct 20, 2016 at 16:12

10 votes

Elementary proofs for Taylor expansion for natural logarithm

answered Apr 17, 2018 at 20:24

10 votes

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Calculators doing numeric integration

answered Jan 24, 2018 at 8:35

10 votes

Finding the square root $\sqrt{4-2\sqrt{3}}$

answered May 27, 2017 at 8:55

10 votes

Compute polynomial $p(x)$ if $x^5=1,\, x\neq 1$ [reducing mod $\textit{simpler}$ multiples]

answered May 13, 2019 at 23:34

10 votes

Accepted

Every integer is congruent to the sum of its digits mod 9

answered Jan 17, 2012 at 1:00

10 votes

Is $2^{1093}-2$ a multiple of $1093^2$?

answered Jan 9, 2012 at 7:46

10 votes

Goldbach conjecture

answered Dec 26, 2011 at 12:09

10 votes

Help understanding this proof

answered Aug 28, 2011 at 16:06

10 votes

Which one result in mathematics has surprised you the most?

answered Mar 14, 2011 at 13:55

10 votes

How to express $(1+x+x^2+\cdots+x^m)^n$ as a power series?

answered Mar 24, 2011 at 11:53

10 votes

What are some unexpected things math predicts?

answered Apr 2, 2012 at 8:03

10 votes

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How can I spot positive recurrence?

answered Jun 2, 2012 at 19:31

10 votes

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Proving a set is uncountable

answered Apr 15, 2012 at 22:20

10 votes

Do there exist any odd prime powers that can be represented as $n^4+4^n$?

answered Dec 19, 2012 at 8:04

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5,856 Answers

Intuition behind the Definition of Conditional Probability (for 2 Events)

Calculating the limit of $[(2n)!/(n!)^2]^{1/n}$ as $n$ tends to $\infty$

A question on circles

Average wait time arriving at subway randomly

Equation of a rectangle

Approximation of $e^{-x}$

What does it mean to divide by the standard deviation?

Sum of n i.i.d Beta-distributed variables

Is my game fair?

How to prove $\sum_p p^{-2} < \frac{1}{2}$?

$\int{x^k dx}$ as $k \rightarrow -1$ "paradox"

Why there is two different answers for the volume of a frustum?

A coin is tossed $m+n$ times $(m>n)$.Show that the probability of atleast $m$ consecutive heads is $\frac{n+2}{2^{m+1}}$

How to solve $f(x)+f\left(\frac{1}{x}\right)=e^{x+\frac{1}{x}}$

How is the distance of two random points in a unit hypercube distributed?

Expected value from a game which gives random numbers from 1 to 100 with reducing payoff

Elementary proofs for Taylor expansion for natural logarithm

Calculators doing numeric integration

Finding the square root $\sqrt{4-2\sqrt{3}}$

Compute polynomial $p(x)$ if $x^5=1,\, x\neq 1$ [reducing mod $\textit{simpler}$ multiples]

Every integer is congruent to the sum of its digits mod 9

Is $2^{1093}-2$ a multiple of $1093^2$?

Goldbach conjecture

Help understanding this proof

Which one result in mathematics has surprised you the most?

How to express $(1+x+x^2+\cdots+x^m)^n$ as a power series?

What are some unexpected things math predicts?

How can I spot positive recurrence?

Proving a set is uncountable

Do there exist any odd prime powers that can be represented as $n^4+4^n$?