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1d
reviewed Leave Open What actually happened to Cantor?
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reviewed Close how do I find the continued fraction of root n ??
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reviewed Close A question in combinatorics is kinda of complex
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reviewed Leave Open Disjoint open sets in $\mathbb{R}^N$
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reviewed Leave Open Non-Existence of Geometric Series Going to Infinity
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reviewed Looks OK Show that $n^4+4$ is composite for $n>1$
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reviewed Approve suggested edit on simplify using the difference quotient when $f(x)=2/x^2$
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reviewed Approve suggested edit on Coordinates of derivatives in the standard polynomial basis
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comment Reducing primes in $\mathbb Z[i]$
"Assume you do not know $p=a^2+b^2$." Second sentence of the question.
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reviewed Looks OK What is the opposite category of $Set$?
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reviewed Close Every subset of a well ordered set is well ordered
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reviewed Close When is the permutation group cyclic?
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comment Trigonometric problem with $\cos{\alpha}$ and $\sin{\alpha}$
mathworld.wolfram.com/HarmonicAdditionTheorem.html
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reviewed Approve suggested edit on If $w = e^{2i\pi/5} $, then $1 + w + w^{2} + w^{3} + 5w^{4} + 4w^{5} + 4w^{6} + 4w^{7} + 4w^{8} + 5w^{9}$=?
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reviewed Approve suggested edit on Prove $2n+3 \le 2^n$ for all integers $n \ge 4$.
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reviewed Reviewed A Bernoulli Differential Equations Problem
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reviewed Reviewed Suppose that displacement (in meters), for an object moving along the axis, as a function of time (in seconds) is given as
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reviewed Approve suggested edit on How to use quotient rule to differentiate $f(t)=\frac{\cos t}{t^3}$?
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revised Toss a fair die until the cumulative sum is a perfect square-Expected Value
edited title
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revised Toss a fair die until the cumulative sum is a perfect square-Expected Value
added 81 characters in body