Kamil Hismatullin

62 reputation

	62 reputation	bio	website		visits	member for	11 months
3 badges		location	Russia		seen	Apr 22 at 18:10

13 Actions

Oct 8	accepted	Epsilon-delta proof of continuity
Jun 8	asked	Epsilon-delta proof of continuity
Jun 6	accepted	Is $f$ injective in $W$?
Jun 6	comment	Is $f$ injective in $W$? Thanks. It's mean that the proof of this expression is in definition of injective function. $f(x) = f(y) => x=y $
Jun 6	comment	Is $f$ injective in $W$? @AdenDong, you are right. Thanks
Jun 6	asked	Is $f$ injective in $W$?
May 28	awarded	Supporter
May 28	awarded	Scholar
May 28	accepted	Prove an inequality about $\arctan 1/(nx)$ for any $x$ and $n$
May 28	awarded	Student
May 28	comment	Prove an inequality about $\arctan 1/(nx)$ for any $x$ and $n$ @Didier, I'm sorry, I was wrong. And then, after showed?
May 28	comment	Prove an inequality about $\arctan 1/(nx)$ for any $x$ and $n$ Didier, thanks. How to show it? I thought that $$ \tan(u)< u $$
May 28	asked	Prove an inequality about $\arctan 1/(nx)$ for any $x$ and $n$