- formulas
- area of a triangle (sas)
- area of a quadrilateral
- area of a triangle-2
- Brahmagupta's formula
- quadratic formula
- Vieta's formulas
- an archimedes' formula
- coordinates-2 (distance)
- trig values of any angle
- 2x2 linear system (Cramer's rule)
- pythagorean theorem (proof)
- the intersept (thales) theorem
- triangle angle-sum theorem
- ptolemy's theorems
- triangle midpoint theorem
- regular polygons
- area of a circle
- sum of the interior angles of a n-gon
- right triangle trigonometry-2
- area of an equilateral triangle
- angle between secants
- quadratic function in any form
- law of cosines (proof)
- law of sines (proof)
- tangent-secant theorem
- secant-secant theorem
- chord theorem
- area of an ellipse
- polar form of a complex
- the nth roots of unity
- arc length (verification)
- pythagorean (verification)
- sphere in cylinder
- frustum of a right cone
- triangular numbers
- triangular numbers-1
- absolute value inequalities2
- absolute value inequalities1
- Area of Circles (3)
- pendulum
- fractional exponents
- Sum of the Cubes
- cube of a binomial
- binomial formula
- difference of two squares
- the sum of the first n odd
- temperature
