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20/20 answers
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1d
reviewed Approve how to show that$ n<{2n \choose n}$ in sets
May
21
reviewed Close Calculus: Velocity and Acceleration Question
May
21
reviewed Close Demonstrate that the two formulae for a scalar product are equivalent.
May
21
reviewed Close How to solve the following equation (xlog)?
May
21
reviewed Close Is the product of $n$ Normal distributions also a normal distribution?
May
21
reviewed Close Tennis probability question
May
21
reviewed Close How can I answer this counting question correctly?
May
21
reviewed Close Way to measure the similarity/difference of 2D point clouds
May
21
reviewed Close Find minutes when digit sum is 20?
May
21
reviewed Close probability of couples.
May
21
reviewed Close Given $g \in C^2(\mathbb{R})$ Study derivability of $f(x) = \frac{g(x)}{x}$
May
21
reviewed Close Closed form formula for discrete sums
May
21
reviewed Close join-semilattice vs Upper-semilattice ?! definition problem ?!
May
21
reviewed Close Solve this: $log_3{a}=log_{10}{a}$
May
21
reviewed Close Easy ways to calculate $\dim \mathbb{K}[x,y]/(f,g)$
May
21
reviewed Close data and signals
May
21
reviewed Close What do the symbols $\mathbb{Z}$ and $\mathbb{Z}_n$ mean on this discrete math problem?
May
21
reviewed Close If $|G| = pqr$ for $p<q<r$ primes and all the Sylow groups are normal; is $G$ abelian?
May
21
reviewed Close Encode/decode hexadecimal challenge
May
21
reviewed Close statistics - estimator and biased unbiased