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 Mar 17 answered 7th class question my daughter asked and need answer if possible Mar 10 answered Show $I=\{sf\mid s\in \mathbb Z_{11}[x]\}$ matches $J=\{h \in \mathbb Z_{11}[x] \mid h(1) = h(-2) = 0\}$. Jan 5 answered In a ring homomorphism we always have $f(1)=1$? Dec 22 answered Prove that s is finite and find an n so large that $S_n$ approximate s to three decimal places. Dec 22 answered Gamma function of negative argument Dec 22 answered How can I find $\sum_{k=1}^{1233}f(\frac{k}{1234})$ Dec 21 answered Why do some people use $+\infty$ instead of $\infty$? Dec 16 answered How does one compute estimate of $\theta$ for this density function? Dec 15 answered How random is the digits of $\pi$? Dec 12 answered Defining the Complex numbers Dec 11 answered Show that that $|\sqrt{x}-\sqrt{y}| \le \sqrt{|x-y|}$ Dec 3 answered Fields where $A^t=A$ and $A^t=-A$ Dec 2 answered When is $f(r)^{-1} \neq f(r^{-1})$ Dec 1 answered Removing noise when the signal is not smooth Nov 23 answered Is mathematics the only language that is not subject of interpretation? Nov 6 answered Finding an asymptotic for the sum $\sum_{p\leq x}p^m$ Sep 4 answered how to be good at proving? Sep 3 answered Method of Least Squares-Why is it preferred? Aug 31 answered Intuitive significance open sets (and software for learning topology?) Aug 29 answered Show that $z^{-1} = \frac{\bar z}{|z|^2}$