2 тысяч подписчиков
53 видео
Pythagorean Trigonometric Identity
Area of a Parallelogram — Deriving Formula, Example, Relation Between Sides, Angles and Area
Products of Sines and Cosines (Product to Sum Formulas)
The Parametric Equation of an Ellipse
Area of Ellipse — Formula Derivation (Proof)
The Last Day of the Decade — December 31, 2020
Domain, Codomain and Notation of a Function
What is Ellipse? — How to Draw It, Focal Points, Definition
The Sum of the First 100 Numbers — Method to Find It (The Sum of the First n Numbers)
Area of Annulus (Circular Ring) — Two Formulas, Perimeter, Width, Example
Area of a Trapezium (Trapezoid) — Two Ways to Derive the Formula
A Stretched (or Shrunken) Circle is an Ellipse
The Standard Equation of an Ellipse
A New Website
Heron’s Formula — Find Area of a Triangle Using Lengths of Its Sides (Example, Formula Derivation)
Introduction to Functions — People in Rooms Example
Equal Perimeters and Areas Problem — Circular Sector with Equal Perimeter and Area as Square
Area of Circle — Formula Derivation (Proof), Example
Pythagorean Theorem — Visual Proof in 10 Seconds
Inradius and Area of Triangle — Find Radius of Inscribed Circle Using Area and Semiperimeter
Optical (Reflective) Property of an Ellipse
Mutilated Chessboard Problem — Tile Chessboard Without Two Opposite Corners With Dominoes
Area of Circular Sector (Circle Sector) — Formula Derivation (Proof), Example
Circumradius and Area of Triangle — Find Radius of Circumscribed Circle Using Area and Sides
Area of a Triangle — Formula, Smallest Perimeter Problem
