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57m
reviewed Approve Sum of $\sum\limits_{x=-\infty}^{\infty}x^{\operatorname{sign}(x)}$
1h
reviewed Approve Investigate the convergence of $\int _0^\infty \frac{\sin x^2}{x} \ dx$
3h
reviewed Reject Ring Structure for Non Commutative Groups: Is there a grander reason for Abelian requirements?
4h
reviewed Approve Is Wolfram-Alpha giving me a wrong result?
5h
revised Largest integer $x$ that satisfies $\dfrac{4x+19}{x+5}<\dfrac{4x-17}{x-3}$
Adding /deleting latex to improve answer.
5h
reviewed Reject What determines what base the right side of this base coversion will be?
5h
revised Factorial, but with addition
change from k+1 to k=1 in product notation
6h
reviewed Approve Proving Squeeze Theorem using Order Limit
8h
reviewed Approve Relation between dot product and magnitude of vector product
9h
reviewed Reject Please, find derivative and type how to solve
9h
reviewed Approve How to calculate the surface of overlapping ellipsoids
9h
reviewed Reject Please, find derivative and type how to solve
12h
wiki created plane-geometry description
13h
reviewed Approve The bilinear mapping that maps the given three points onto three given points
13h
reviewed Approve Components of a vector
18h
reviewed Approve About Laplace transform, how to solve it
19h
reviewed Approve If I flip a coin 1000 times in a row and it lands on heads all 1000 times, what is the probability that it's an unfair coin?
19h
reviewed Approve Explicit expression of a sequence
21h
reviewed Approve Solving for $x$ in $A=B\cdot \cos(x)+C\cdot \sin(x)$
22h
reviewed Approve Convergence of series $\sum^{\infty }_{n=2}\frac{\log[(1\text{+}\frac{1}{n} )^{n}(n+1)]}{\log(n)^{n}\log\text{(}n+1)^{n+1}} =\log_{2}\sqrt{e}$