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Jun
14
awarded  Good Answer
May
17
reviewed Reject Finitely generated modules, related to the Gaussian integers
May
2
reviewed Approve Calculation of Integral of $ \int \sqrt{\sec 2x-1}\;dx$ and $ \int \sqrt{\sec 2x+1}\;dx$
Apr
27
reviewed Close On the following of the question: every $k$-dimensional vector subspace $V$ of …
Apr
27
reviewed Close Area of surface
Apr
27
reviewed Leave Open finding a third 3d point in a series
Apr
27
reviewed Leave Open If $f(a+re^{it})\in \Bbb{R}$ for all $t\in \Bbb{R}$ then $f$ is constant.
Apr
27
reviewed Leave Open Ring Homomorphism Textbook Question
Apr
27
reviewed Close Tensor algebra becomes a graded $R$-algebra short proof verification
Apr
27
reviewed Approve Solve integral with exponent
Apr
27
reviewed Approve Evaluate $\lim_{x \to \infty} xe^{-x}+be^{-x}$
Apr
27
reviewed Reject Smooth manifold
Apr
27
reviewed Approve In which algebraic setting can I state (and prove) the binomial theorem?
Apr
25
reviewed Approve $y_{2n}, y_{2n+1}$ and $y_{3n}$ all converge. What can we say about the sequence $ y_n$?
Apr
25
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 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