mixedmath
Reputation
57,295
735/1000 score
 Apr 17 reviewed Approve Is $xy y' = \sqrt{y^2 + 1}$ separable or non-separable? Apr 13 reviewed Approve Show that if $\gcd(a,pq)=1$ and $g=\gcd (p-1, q-1)$ then $a^{\frac{(p-1)(q-1)}{g}}\equiv 1 \pmod {pq}$. Feb 14 reviewed Leave Closed How can I calculate missing values from a table listing of areas and prices? Feb 14 reviewed Leave Closed The appearance of complex numbers when factoring quadratics Feb 14 reviewed Leave Closed What is wrong with this infinite sum Nov 5 reviewed Reject Divisibility criteria of 24. Why is this? Oct 19 reviewed Reviewed Finding the height of a balloon given two observers on the ground at a fixed distance apart Oct 19 reviewed Leave Closed Combinatorics: how do you apply multiset theory to solve problem about items in a bag? Oct 19 reviewed Leave Open How to prove that the following system of equations has only one solution? Oct 19 reviewed Close The fundamental group of $\mathbb S^2$ attached with a diameter? Oct 19 reviewed Close Relation between Fundamental theorem of calculus and the definition of the derivative Oct 19 reviewed Leave Open Circuits and Trees Oct 19 reviewed Close Number of rational roots of a univariate polynomial Oct 19 reviewed Leave Open Integral Involving Gaussian Q function and exponential Oct 19 reviewed Close $\frac{1}{e}=\lim_{n\to \infty}(1-\frac{1}{n+1})^{n+1}$ How? Oct 19 reviewed Leave Open Find $x$ which satisfies the following equation Oct 19 reviewed Leave Open show that $f(x)=\frac{1}{\sqrt{5} -2\sin x}$, is bounded on the interval $0\leq x \leq 2\pi$? Oct 19 reviewed Close Establishing Triangle Inequality of a particular norm Oct 19 reviewed Leave Open What does it mean for the determinant of $A^T A$ to be equal to zero? Oct 19 reviewed Close simple logic to use only one operator to construct a function