$ABC$ is a triangle. Find the locus of $P$ if $PA^2 + PB^2 = PC^2$
113454
Find the locus of this point P
55905
Find the Hamiltonian given $\dot p$ and $\dot q$
139411
Finding $\pi$ factorial
106141
Find the area ratio between ABC and the hatched triangle.
45775
In a $\triangle ABC,$ Evaluation of minimum value of $\cot^2 A+\cot^2 B+\cot^2 C$
53499
Equilateral triangle inscribed in a triangle
119111
How does this equality on vertices in the complex plane imply they are vertices of an equilateral triangle?
39906
Equation of the locus of the foot of perpendicular from any focus upon any tangent to the ellipse ${x^2\over a^2}+{y^2\over b^2}=1$
94382
Calculate the degree of the extension $[\mathbb{Q}(\cos(\frac{2\pi}{p})):\mathbb{Q}]$
130653
$p^2$ divides $ab$ and $\gcd(a,b)=1$. Show $p^2$ divides $a$ or $p^2$ divides $b$
157660
proof $a$ ,$b$ and $c$ can be sides of a triangle
20526
Show that $PF.PG=b^2$ in a hyperbola
73799
In a convex Quadrilateral ABCD, $\measuredangle ABC = \measuredangle BCD = 120^{\circ}$.Prove that: $ AC + BD \ge AB + BC + CD$
130517
$ABCD$ is a square and $AEB$ is an equilateral triangle. Find $\angle DEC$.
47378
draw $\triangle ABC$ in which $AB=5.5$cm, $\angle C =40^{\circ}$ and $BC-AC=2.5$cm
118766
For $A_1 A_2\cdots A_{11}$ a regular $11$-gon with circumradius $2$, and point $P$ at distance $3$ from the center, find $\sum PA_k^2$
39492
Finding $z\in \mathbb C$ with $\sin z = 2$?