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# 1,502 Reviews

 Apr16 reviewed Leave Closed Is $(A × B) ∪ (C × D) = (A ∪ C) × (B ∪ D)$ true for all sets $A, B, C$ and $D$? Apr16 reviewed Close Is this matrix equation solved right? Apr16 reviewed Close Solving equations with hyperbolics $\sinh^2(x)+\cosh(x)=11$ Apr16 reviewed Leave Open Proof that any unit-speed-reparametrization of a curve preserves orientation and is an inverse of an arc length function based at some $t_0$. Apr16 reviewed Close Acceleration vector at highest point of accelerated projectile Apr16 reviewed Close Defining a stochastic process indexed by angle Apr16 reviewed Leave Open Product of two infinite sequences Apr16 reviewed Close How to solve $1 = \sum_{p \text{ prime}} x^{-p-1}$? Apr16 reviewed Leave Open Find the marginal densities of X and Y? Apr16 reviewed Leave Open Estimating a sum Apr16 reviewed Close Find the correlation between $U$ and $V$? Apr16 reviewed Leave Open Cryptography Combinatorics question Apr16 reviewed Leave Open Prove $(n,m)R(r,s) \equiv (n>r) \text{ or } (n=r \text{ and } m\geq s)$ is an order relation. Apr16 reviewed Leave Open How to write the “otherwise” condition Apr16 reviewed Leave Open What is the slow manifolds? and how to calculate? Apr16 reviewed Close Why is the joint density function of X and Y 1/L^2? Apr16 reviewed Close What is the derivative of max and min functions? Apr16 reviewed Close Let X and Y be jointly continuous random variables, and let $A$ be an arbitrary subset of $\mathbb{R^2}$. Apr16 reviewed Close Possible Permutations of Words Apr16 reviewed Close Difference : subsequences and substrings