Jack M
Reputation
12,107
Next privilege 15,000 Rep.
Protect questions
 May 24 reviewed Close What is the meaning of $:s$ after a mathematical symbol? May 12 reviewed Leave Open How to detect all points of rectangle by given one point A, height, width, and angle between AC and X axis? May 12 reviewed Close What are some good math books 1st grade highschool student can understand? May 12 reviewed Leave Open What's the maximum speed of snake so that the frog can escape? May 12 reviewed Leave Open Can anyone help me with this improper integral? May 12 reviewed Leave Open Working out my exam grade May 12 reviewed Leave Open Generalization of Chinese Remainder Theorem May 11 reviewed Leave Open dimension of a direct sum is the sum of the separate dimensions May 11 reviewed Leave Open How to prove this inequality $(\sum_i x_i y_i)^2 - \sum_i x_i^2y_i^2 \leq 1-1/n$? May 11 reviewed Leave Open Can anyone explain why this series converges? May 11 reviewed Close What is the maximal path of a tree? May 11 reviewed Leave Open On the existence of a non-regular language $L$ such that $L^2\in \text{Reg}$? May 11 reviewed Leave Open Solving $T(n) = 3T(n-1)$ May 6 reviewed Reject Common tangent to a circle and ellipse May 2 reviewed Approve Orthogonal circles Apr 3 reviewed Reject Why only the numerator is derived? Jan 27 reviewed Reject If $|B\times A| = 15$ ,evaluate: $|A\cap B|$ Jan 10 reviewed Reject Give a direct proof of the fact that $a^2-5a+6$ is even for any $a \in \mathbb Z$ Nov 18 reviewed Edit If the number $x$ is algebraic, then $x^2$ is also algebraic Oct 4 reviewed Approve Prove all multiples of $U$ contain all the digits $0$ to $9$