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9h
reviewed Approve $y_{2n}, y_{2n+1}$ and $y_{3n}$ all converge. What can we say about the sequence $ y_n$?
9h
reviewed Approve Proving $T(n) = 1 + \sum_{j=0}^{n-1} T(j)$, $T(0)=1$ implies $T(n)=2^n$
Apr
21
reviewed Leave Open Common terms between two arithmetic series
Apr
21
reviewed Leave Open A proof about boundedness for continuous functions
Apr
21
reviewed Close Martingale difference sequence
Apr
21
reviewed Leave Open Why $R/AB$ is cyclic?
Apr
21
reviewed Approve Dropping the lowest number in a set lowers the mean average of the set.
Apr
21
reviewed Approve Riemann Sum proofs
Sep
2
reviewed Approve spectral-graph-theory tag wiki excerpt
Aug
2
reviewed Approve Finding the volume of $(x-4)^2+y^2 \leqslant 4$
Aug
2
reviewed Reject Finitely generated ideal in Boolean ring; how do we motivate the generator?
Apr
26
reviewed Reject Uniform convergence of $\sum_{k=1}^\infty \frac{1}{k^{1+x}}$
Apr
21
reviewed Approve Estimating the integrated Tchebychev function and calculating its error
Apr
20
reviewed Approve Find last n for which 2^n has a 0.
Apr
11
reviewed Edit If $2$ divides a number $a$, does $2^n$ divide $a$ ? $n$ is any integar
Apr
6
reviewed Approve Confidence interval for n=1, unknown standard deviation
Apr
2
reviewed Edit How can a piece of A4 paper be folded in exactly three equal parts?
Mar
31
reviewed Approve What is a hypersurface ring and why is it Gorenstein?
Mar
30
reviewed Approve Geometric reducedness (integral) versus reducedness (integral)
Mar
30
reviewed Approve Why would you expand a square wave in a Fourier series?