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Feb
19
answered Prove that $a_i\leq 0$ for $i=1,2,…,N-1$?
Dec
24
answered Urn problem with balls
Dec
24
answered Game to maintain distinct number of balls in glasses
Dec
24
answered Prove without induction $2^n \mid (b+\sqrt{b^2-4c})^n + (b-\sqrt{b^2-4c})^n $
Oct
6
answered Probability/Decision- infimum over set of expectations (can be interpreted as decision problem)
Jul
30
answered How to simplify a sum with binomial coefficients multiplied by $k^3/2^k$?
Jul
3
answered Combinatorics: Mean and Variance of an indicator function of items arranged in a circle.
Jan
10
answered Confusion related to the simplification of an equation
Jan
5
answered Optimisation problem; Length of a cable
Jan
4
answered What's a proof that the angles of a triangle add up to 180°?
Jan
3
answered What's a proof that the angles of a triangle add up to 180°?
Oct
18
answered Does Pi contain all possible number combinations?
Jul
16
answered Differentiating the posterior distribution function
Jun
16
answered Finding an invariant under Group operations
Nov
19
answered Efficient method for detecting a convex body in $\mathbb{R}^n$
Nov
12
answered Probability about three independent exponential random variables
Oct
20
answered What does an empirical distribution represent?
Oct
5
answered Why isn't $\mathbb{R}^2$ a countable union of ranges of curves?
Jul
22
answered How to find the center of an ellipse?
Jun
30
answered Necessary and sufficient conditions for a helix