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May
21
awarded  Yearling
Aug
5
awarded  Necromancer
Jul
29
reviewed Approve Represent a prime number $p$ congruent to $1$ $\pmod{3}$ by a sum of a square and $3$ times a square
Jul
17
awarded  Enlightened
Jul
17
awarded  Nice Answer
Jun
8
reviewed Approve Why does $1-\sqrt{1-4pq} = 1-|p-q |$ for $p \in (0,1)$ and $q=1-p$?
Jun
2
answered Why a subspace of a vector space is useful
May
21
awarded  Yearling
Mar
10
awarded  Nice Answer
Feb
2
reviewed Approve Packing circles on a line
Jan
18
comment Equilateral triangle geometric problem
thanks, corrected
Jan
18
revised Equilateral triangle geometric problem
arithmetic error in the last 2 lines (25/4 instead of 25/2 as per comment
Jan
9
reviewed Approve Derivative of trigonometric function help
Sep
30
accepted $\frac{dy}{dx}=1+\frac{2}{x+y}$ solution by an “integrating term”
May
21
awarded  Yearling
Mar
14
answered Show that the surface area of a cone with base radius $a$ and height $h$ is $\pi a \sqrt{a^2+h^2}$
Mar
13
comment Equilateral triangle geometric problem
see the edited answer
Mar
13
revised Equilateral triangle geometric problem
added 644 characters in body
Mar
13
comment Equilateral triangle geometric problem
Hold on, there is a flaw in my picture, correcting now
Mar
13
comment Solve $x=y\frac{dy}{dx}-\left(\frac{dy}{dx}\right)^{2}$
Check out this: en.wikipedia.org/wiki/Clairaut's_equation