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10 Show that $2^{15}-2^3$ divides $a^{15}-a^3$ for all $a$ Apr 5 '16
7 The difference between $\mathbb{Z}$ and $\mathbb{Z}^2$ May 17 '13
6 Using Green's Theorem to Express the Integral $I=\int_C (Pdx+Qdy)$ as an expression of $I_i=\int _{C_i} (Pdx+Qdy)$ May 30 '16
5 Is there a simple, intuitive way to see that $f(x)=x-\sqrt{x^2-1}<1$ if $x>1$ May 28 '16
5 periodic continous function $f$ Jun 9 '16
4 Let $f(z)=\sum\limits_{n=0}^{\infty}a_n z^n$ be an analytic function in $|z|\leq R$ such that $|f(z)|\leq M$. Prove an inequality about $f$'s zero Feb 1 '17
4 Is any relation which contains only one ordered pair transitive? May 4 '13
3 Help with Change of Variable for the function $f(x,y)=e^{\frac{x}{2x+3y}}$ May 29 '16
3 Calculating the Volume of a function on the sphere Jun 11 '13
3 If $f:\mathbb{R}\rightarrow \mathbb{R}$ is continuous, 1-1, and on-to, then f maps Borel Sets to Borel Sets [duplicate] Nov 8 '13
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