Mathematics
Raúl Alegre's user avatar
Raúl Alegre's user avatar
Raúl Alegre's user avatar
Raúl Alegre
  • Member for 8 years, 11 months
  • Last seen more than a month ago
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29
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13
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View all questions and answers
All Questions Answers
Score Newest
question
8
Prove $\sqrt{-7} \not\in \mathbb{Z}\left[\frac{2+3\sqrt{-7}}{4}\right]$
Nov 5, 2014
answer
4
Finding all the values of $\theta$ for which $\tan(\theta)=\sqrt3$; problem with understanding.
Nov 18, 2014
answer
3
Monic generator of an ideal
Nov 17, 2014
answer
3
Show that $a,b$ are units in a ring
Nov 17, 2014
answer
3
Irreducible but not prime in $K[X,Y]/(X^2-Y^3)$
Nov 19, 2014
answer
3
Questions about continuity in the function $f(x+y)= f(x)+f(y)$ for each $x,y \in \Bbb{R}$.
Jan 1, 2015
answer
2
Does every group homomorphism from $(0,\infty),\times)$ to $(\mathbb{R},+)$ send $1$ to $1$?
Oct 29, 2014
answer
2
Find the least $n$ such that the fraction is reducible
Oct 30, 2014
answer
2
Apparent contradiction in first order differential equation
Nov 3, 2014
answer
2
Check: Prove that $T_b \circ T_c=T_{bc} \forall b,c \in G$
Nov 9, 2014

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