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visits member for 4 years, 4 months
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Dec
14
reviewed Approve Why multiplying or dividing a positive value by a negative value gives a negative answer?
Nov
8
reviewed Leave Open Is Riemann Hypothesis provable?
Jul
18
reviewed Approve Norm of a Vector
Jul
14
reviewed Approve Evaluate: $I = \int^{\pi/2}_0 (\sqrt{\sin x}+\sqrt{\cos x})^{-4}dx$
Jul
9
reviewed Leave Open Is $f$ non decreasing?
Jun
8
reviewed Approve function - area under the curve
May
25
reviewed Approve How to plot the graph of parabola?
Apr
18
reviewed Leave Open Second derivative of $f(f(\cdots f(x)\cdots )?$
Feb
11
reviewed Edit What does $[0,1]/\{1, \frac 12, \frac 13, … 0\}$ look like?
Feb
8
reviewed Close How can we make any integer m>11 using 3's and 5's only??
Feb
8
reviewed Close probability ans statistics expected value
Feb
8
reviewed Close How to show that the following function is a bijection?
Feb
8
reviewed Leave Open How would you prove that the graph of a linear equation is a straight line, and vice versa, at a “high school” level?
Dec
23
reviewed Approve discrete math question with function growth
Dec
23
reviewed Reject Discrete subgroups of SU(n) and SO(n).
Dec
10
reviewed Approve Probability of Bernoulli Trials.
Dec
10
reviewed Approve Prove that the $\lim_{x \rightarrow 0}\frac1x$ does not exist
Dec
10
reviewed Approve Ultraproducts by countably complete ultrafilter
Dec
10
reviewed No Action Needed How many outcomes of a coin being flipped 12 times have exactly 4 heads?
Dec
10
reviewed No Action Needed Why if the rank of matrix $M=\begin{pmatrix}2x&2y&0\\1&0&1\\ \end{pmatrix}$ is less than $2$,then $x=y=0$?