3,985 reputation
11445
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age 25
visits member for 3 years, 9 months
seen 14 hours ago

Aug
6
reviewed Close Simplifying this sigma notation
Jan
10
reviewed Approve A convolution like integral equation
Jan
8
reviewed Approve What's the explanation for why n^2+1 is never divisible by 3?
Jan
7
reviewed Reviewed Modular Arithmetic with Indices
Jan
7
reviewed Close Consider the set $E = \{0,1,2\}$, compute $\operatorname{card}(E\cup P(E))$.
Jan
7
reviewed Close Prove that unity of two subspaces is a subspace if and only if one is a subspace of the other
Jan
7
reviewed Close How does the sum of the series “$1 + 2 + 3 + 4 + 5 + 6\ldots$” to infinity = “$-1/12$”?
Jan
7
reviewed Close second derivative question
Jan
7
reviewed Close Prove that $ x^n - y^n = (x-y) (x^{n-1}+x^{n-2}y\,+ \,\,…\,\,+ y^{n-1})$
Dec
27
reviewed Close Don't be Greedier
Dec
24
reviewed Close Semigroups isomorphism
Dec
12
reviewed Reviewed Probability of 100 coin tosses
Dec
12
reviewed Leave Closed Let $A$ be an abelian group. Show that $\mathrm{Hom}(\mathbb Z, A)$ is isomorphic to $A$.
Dec
12
reviewed Reopen The area bound by the curve and its tangent.
Dec
12
reviewed Reopen Mean square integrable
Dec
12
reviewed Close Cesaro means and equivalent sequences
Dec
12
reviewed Close Express $\cos$ and $\sin$ values
Dec
12
reviewed Close What are the implications of Prime Number Theorem in Cryptography?
Dec
12
reviewed Close 17 varieties of donuts. Order 12 donuts. Variety repetition allowed, 12 of each variety available. How many ways to order 12 donuts?
Dec
12
reviewed Close Limit of $\sqrt{x^2-6x+7}-x$ as x approaches negative infinity