Trefl S.A. is a Sopot, Poland-based family-owned jigsaw puzzle, board game and toy manufacturing and distributing company, Poland's largest and one of the leading European jigsaw puzzle companies. The Trefl group includes also Studio Trefl, which produces animated television series, Wydawnictwo Trefl, which publishes children's books, and Baltic Media Group, a media company which produces commercial and advertisement videos. The sporting division of Trefl includes Trefl Sopot and Trefl Gdańsk, professional men's, respectively, basketball and volleyball teams. Trefl widely licences popular brands such as Disney characters, Hasbro and Mattel, to feature them on their products. Trefl was founded in 1985 by Kazimierz Wierzbicki, who began manufacturing jigsaw puzzles. In 1989, the company received a permit to export its products. Since 1991, Disney is Trefl's major licensing partner. The company started making 3d puzzles in 2004. In 1998, Trefl became the major shareholder of Kraków-based game cards manufacturing company, today known as Trefl Playing Card Company (Fabryka Kart Trefl-Kraków). Kazimierz Wierzbicki is an avid sports fan and former basketball, skiing and volleyball instructor. Thus, his company has a long-standing tradition of supporting local sports. In 1995, he founded one of Poland's leading and most-successful professional men's basketball teams, Trefl Sopot. (Wikipedia).
In this video, I define what it means to rearrange (or reshuffle) a series and show that if a series converges absolutely, then any rearrangement of the series converges to the same limit. Interesting Consequence: https://youtu.be/Mw7ocynGVmw Series Playlist: https://www.youtube.com/play
From playlist Series
Calculus 2: Parametric Equations (1 of 20) What is a Parametric Equation?
Visit http://ilectureonline.com for more math and science lectures! In this video I will explain what is a parametric equation. A parametric equation is an equation that expresses each variable of an equation in terms of another variable. Next video in the series can be seen at: https://
From playlist CALCULUS 2 CH 17 PARAMETRIC EQUATIONS
Finding the solutions to a trigonometric equation
👉 Learn how to solve trigonometric equations by factoring out the GCF. When solving trigonometric equations involving the multiples of the same trigonometric function. It is very useful to collect similar trigonometric functions together and then factor out the GCF. This enables us to use
From playlist Solve Trigonometric Equations
Multiply a Trinomial by a Trinomial Using a Rectangle - Math Tutorial
👉 Learn how to multiply polynomials. To multiply polynomials, we use the distributive property. The distributive property is essential for multiplying polynomials. The distributive property is the use of each term of one of the polynomials to multiply all the terms of the other polynomial.
From playlist How to Multiply a Trinomial by a Trinomial
#Cycloid: A curve traced by a point on a circle rolling in a straight line. (A preview of this Sunday's video.)
From playlist Miscellaneous
Easiest Way to Multiply Two Trinomials by Each Other - Math Tutorial
👉 Learn how to multiply polynomials. To multiply polynomials, we use the distributive property. The distributive property is essential for multiplying polynomials. The distributive property is the use of each term of one of the polynomials to multiply all the terms of the other polynomial.
From playlist How to Multiply a Trinomial by a Trinomial
Eliminating the parameter for parametric trigonometric
Learn how to eliminate the parameter in a parametric equation. A parametric equation is a set of equations that express a set of quantities as explicit functions of a number of independent variables, known as parameters. Eliminating the parameter allows us to write parametric equation in r
From playlist Parametric Equations
Using the Box Method to Multiply a Trinomial by a Trinomial - Math Tutorial
👉 Learn how to multiply polynomials. To multiply polynomials, we use the distributive property. The distributive property is essential for multiplying polynomials. The distributive property is the use of each term of one of the polynomials to multiply all the terms of the other polynomial.
From playlist How to Multiply a Trinomial by a Trinomial
Eliminating the parameter for parametric equations quadratic
Learn how to eliminate the parameter in a parametric equation. A parametric equation is a set of equations that express a set of quantities as explicit functions of a number of independent variables, known as parameters. Eliminating the parameter allows us to write parametric equation in r
From playlist Parametric Equations
What is the difference between convex and concave
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons