253 reputation
19
bio website vlife.cz.cc
location Romania
age 24
visits member for 3 years, 1 month
seen Apr 19 at 23:31

Jul
2
awarded  Curious
Mar
17
accepted Find m for which $f(x)=\sqrt[3]{2x^2-mx+1}$ is differentiable on $\mathbb{R}$
Mar
17
asked Find m for which $f(x)=\sqrt[3]{2x^2-mx+1}$ is differentiable on $\mathbb{R}$
Aug
31
awarded  Yearling
Apr
30
accepted Combinatorics problem: form a team of three people with at least one medic, having 5 nurses and 4 medics.
Apr
30
asked Combinatorics problem: form a team of three people with at least one medic, having 5 nurses and 4 medics.
Feb
9
awarded  Critic
Dec
1
awarded  Commentator
Nov
22
comment Find x in $4^{\sin^2x}+4^{\cos^2x}=8$
The error in the third line was just a mistake. On paper I wrote correctly.
Nov
22
accepted Find x in $4^{\sin^2x}+4^{\cos^2x}=8$
Nov
22
comment Find x in $4^{\sin^2x}+4^{\cos^2x}=8$
It was a typographical error the third line. I corrected it. However, it doesn't change the rest of the steps because I considered it to be $8\cdot4^{sin^2x}$
Nov
22
revised Find x in $4^{\sin^2x}+4^{\cos^2x}=8$
added 6 characters in body
Nov
22
asked Find x in $4^{\sin^2x}+4^{\cos^2x}=8$
Nov
22
accepted Find x: $2^{2x^2}+2^{x^2+2x+2}=2^{4x+5}$
Nov
22
asked Find x: $2^{2x^2}+2^{x^2+2x+2}=2^{4x+5}$
Nov
11
accepted Determine $z^n+z^{-n}$ if $z+\frac{1}{z}=-2\cos{x}$
Nov
3
comment Determine $z^n+z^{-n}$ if $z+\frac{1}{z}=-2\cos{x}$
Yes, x is real.
Nov
3
asked Determine $z^n+z^{-n}$ if $z+\frac{1}{z}=-2\cos{x}$
Nov
3
accepted Solve for $z$ in $4z^2+8|z|^2-3=0$
Nov
3
comment Solve for $z$ in $4z^2+8|z|^2-3=0$
So finally it will be $4z^2+8z^2-3=0$? Thank you!