User Dleep

11 votes

Sudoku with special properties

answered May 22, 2016 at 10:30

3 votes

Maximum value of the smallest number of operations to obtain configuration from original configuration

answered May 27, 2016 at 4:21

3 votes

Accepted

What's the easiest way to prove that the following matrices are 0?

answered Jun 13, 2016 at 6:17

3 votes

Expected value of an infinite sum of random variables

answered Jun 17, 2016 at 7:02

3 votes

Accepted

How many possible guesses?

answered Jul 20, 2015 at 18:00

3 votes

Ten marbles put in a box, colour of each set by toss of a fair coin. You draw (with replacement) ten white marbles. Probability all marbles are white?

answered Jul 23, 2015 at 22:19

3 votes

Algorithm for rolling an infinite-sided weighted die

answered Jul 8, 2015 at 22:48

2 votes

Do planes stop, or are they ever expanding?

answered May 20, 2015 at 4:24

2 votes

Accepted

$\leq$ V.S. $\leqslant$

answered May 15, 2015 at 1:49

2 votes

Accepted

What does θ(1) means in this equation?

answered Jul 17, 2015 at 20:16

2 votes

equation of a circle given 2 points

answered Sep 23, 2015 at 19:54

2 votes

Help with the integral $\int \frac{1}{e - e^y} dy$

answered Jun 11, 2016 at 21:52

2 votes

Accepted

Finding the derivative of an indicator function using the limit definition.

answered Jun 12, 2016 at 2:43

2 votes

proof that $\sum_{n=1}^{\infty}\frac{n}{n^2+2n+1}$ diverges, by comparsion

answered May 27, 2016 at 4:05

1 vote

Expected value formula? Unsure.

answered Apr 12, 2022 at 16:25

1 vote

Accepted

triangle inequality theorem

answered Aug 4, 2015 at 20:52

1 vote

Accepted

Probability of a repeatedly right answer

answered May 14, 2015 at 15:45

1 vote

Accepted

Problem with solving a conditional-probability question

answered May 16, 2015 at 1:01

1 vote

Condition for infinitely many solutions for non-homogeneous linear equation

answered May 16, 2015 at 20:02

1 vote

There exists a pair of positive ints $(m,n)$ such that $(m,n$ and $m+n)$ are all perfect squares

answered Jun 5, 2015 at 20:15

1 vote

The number of ways a coin can be tossed 6 times so that there is exactly 3 heads and no two heads occur in a row is?

answered Jun 6, 2015 at 21:12

1 vote

Is the Wronskian determinant positive or negative?

answered May 14, 2015 at 16:41

1 vote

Accepted

How to find a real matrix with complex eigenvalues,

answered Jul 4, 2015 at 1:51

0 votes

Quadratic Polynomial with complex coefficients

answered Jul 9, 2015 at 5:14

0 votes

Odds of pulling out 10 specific cards out of a deck

answered Jun 7, 2015 at 2:33

0 votes

Probability of picking all white marbles?

answered Jul 4, 2015 at 1:42

0 votes

Probability of losing and gaining money in a card game

answered May 18, 2015 at 0:45

0 votes

Probability of Warcraft

answered Jul 4, 2015 at 2:02

0 votes

Minimum containers of given volumes for packing whole volume of a liquid

answered May 16, 2015 at 5:29

0 votes

Prove by mathematical induction for all n in N

answered May 14, 2015 at 16:09

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39 Answers

Sudoku with special properties

Maximum value of the smallest number of operations to obtain configuration from original configuration

What's the easiest way to prove that the following matrices are 0?

Expected value of an infinite sum of random variables

How many possible guesses?

Ten marbles put in a box, colour of each set by toss of a fair coin. You draw (with replacement) ten white marbles. Probability all marbles are white?

Algorithm for rolling an infinite-sided weighted die

Do planes stop, or are they ever expanding?

$\leq$ V.S. $\leqslant$

What does θ(1) means in this equation?

equation of a circle given 2 points

Help with the integral $\int \frac{1}{e - e^y} dy$

Finding the derivative of an indicator function using the limit definition.

proof that $\sum_{n=1}^{\infty}\frac{n}{n^2+2n+1}$ diverges, by comparsion

Expected value formula? Unsure.

triangle inequality theorem

Probability of a repeatedly right answer

Problem with solving a conditional-probability question

Condition for infinitely many solutions for non-homogeneous linear equation

There exists a pair of positive ints $(m,n)$ such that $(m,n$ and $m+n)$ are all perfect squares

The number of ways a coin can be tossed 6 times so that there is exactly 3 heads and no two heads occur in a row is?

Is the Wronskian determinant positive or negative?

How to find a real matrix with complex eigenvalues,

Quadratic Polynomial with complex coefficients

Odds of pulling out 10 specific cards out of a deck

Probability of picking all white marbles?

Probability of losing and gaining money in a card game

Probability of Warcraft

Minimum containers of given volumes for packing whole volume of a liquid

Prove by mathematical induction for all n in N