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What's the closure of the equivalence classes of numbers the same distance from $\langle2\rangle$ by the Collatz graph?

answered Oct 9, 2018 at 12:05

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Preserving historical information of the Collatz function?

answered Apr 18, 2019 at 15:10

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Probability of finding a random number in a random interval vs. random samples

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How people found or derived shortcuts for derivatives?

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Prove the product of an even integer and an odd integer is even

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Evaluate $\int_{0}^{1}F(\sin \pi x)\;dx$

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Prove that the product of two evens is even. Generalise to any divisor.

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Is it correct to write calculations without units then add them to the answer?

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Rubik's Cube with Oriented Tiles - minimum moves and algorithms

answered Aug 19, 2016 at 18:06

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How is this combinatorial behavior called?

answered Aug 22, 2016 at 10:48

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The use of binary numeral system for theoretical results

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Proof that number of horizontal 2-wide by-1 high dominoes covering a n-wide by 2-high rectangle is even

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answered Mar 23, 2017 at 16:02

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answered Jul 15, 2016 at 13:58

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Prove that if n is even then $n^2$ is even and if n is odd then $n^2$ is odd?

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$r = \sin(3\theta)$ Manual graph

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answered May 19, 2016 at 13:20

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Do men or women have more brothers?

answered May 23, 2016 at 16:04

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215 Answers

What's the closure of the equivalence classes of numbers the same distance from $\langle2\rangle$ by the Collatz graph?

Preserving historical information of the Collatz function?

Probability of finding a random number in a random interval vs. random samples

How people found or derived shortcuts for derivatives?

Prove the product of an even integer and an odd integer is even

A question regarding mathematical induction

Evaluate $\int_{0}^{1}F(\sin \pi x)\;dx$

Prove that the product of two evens is even. Generalise to any divisor.

Probability of passing a test: theory test and practice test. Dependent or independent events?

A tricky probability question (About drawing balls from boxes)

Combinatorics: $m$ Lightbulbs in $n$ sockets

Is it correct to write calculations without units then add them to the answer?

Probability question without replacement. Which approach is correct?

Expected number of colors picked from multiple baskets

Rubik's Cube with Oriented Tiles - minimum moves and algorithms

How is this combinatorial behavior called?

The use of binary numeral system for theoretical results

Ms Black, Ms Blue and Ms Green - Is there really a unique answer?

Proof that number of horizontal 2-wide by-1 high dominoes covering a n-wide by 2-high rectangle is even

Recurrence relation - "order matters" clause

Distributing $10$ unique candies to $2$ kids - two models

Basic atoms in mathematics

Take percentage and convert it to 0% to 100% range?

Prove that if n is even then $n^2$ is even and if n is odd then $n^2$ is odd?

Estimating the total cost of purchasing every item in a grocery store

Finding the Probability of a Normal Distribution

Probability of drawing either a heart, diamond or ace having removed some cards

$r = \sin(3\theta)$ Manual graph

Probability that $A \cup B$ = S and $A \cap B = \phi $

Do men or women have more brothers?